A device for detecting the magnetic field stability after rotor magnetization

Abstract

The present invention discloses a device for detecting the magnetic field stability after rotor magnetization, belonging to the technical field of magnetic field stability detection. It includes a detection tank, on the outer surface of which an observation window is fixedly installed. On one outer wall of the detection tank, a side frame is fixedly installed, and a display is fixedly installed on the side frame. On the top surface of the detection tank, a rotation hole is provided, and a top cover is rotatably installed in the rotation hole. On the inner surface of the detection tank, an internal magnetic field intensity detection ring and a plurality of internal engagement teeth are fixedly installed; in the present invention, a rotatable and movable rotor installation component is provided. Through this design, a flexible and adjustable design is adopted, which can provide the rotor with magnetic field detection conditions of various different distances and different motion modes, thus being beneficial to comprehensively monitoring the stability of the magnetic field of the rotor after magnetization, greatly improving the actual application effect and comprehensiveness of use of the device, and the adjustment parameters can be clearly observed by external staff, which is convenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of magnetic field stability detection, and particularly relates to a device for detecting the magnetic field stability after a rotor is magnetized. Background Art

[0002] The magnetic field stability is affected by various factors, including the type of magnet, design quality, ferromagnetic substances near the magnet, ambient temperature, and the stability of the magnet power supply. For example, the presence of ferromagnetic substances near the magnet may interfere with the magnetic field, resulting in changes in the magnetic field uniformity and field strength. The change in ambient temperature may also affect the magnetic field stability, especially for permanent magnets and normal-conducting magnets. In order to check the magnetic field stability, magnetic field stability detection is required. Magnetic field stability detection is an index to measure the degree of magnetic field strength drift. When detecting the magnetic field after a rotor is magnetized after production, a magnetic field detection device needs to be applied.

[0003] Chinese Patent Publication (CN105372607B) discloses a flexible graphene nanowall resistive magnetic field detection device and its preparation method. The detection device includes a detection element and parallel electrodes. The detection element is composed of a pressure-sensitive layer, a magnetic field induction layer, and a flexible substrate. The pressure-sensitive layer and the magnetic field induction layer are adhered to both sides of the flexible substrate, and the parallel electrodes are arranged on the surface of the pressure-sensitive layer. The pressure-sensitive layer is a graphene nanowall. This device overcomes the deficiencies of existing conventional magnetic field detection devices and has the advantages of low power consumption, high sensitivity, high measurement accuracy, high stability, etc. At the same time, due to the use of a flexible substrate, it can be widely applied to occasions such as the human body that require flexible magnetic field detection devices. Although today's magnetic field detection devices can detect the magnetic field, they only detect the strength of the magnetic field, and the magnetic field stability cannot be comprehensively monitored. Moreover, the flexibility of the detection device is poor, and it cannot quickly provide various different forms of detection, resulting in poor actual application effects. Therefore, a device for detecting the magnetic field stability after a rotor is magnetized is proposed. Summary of the Invention

[0004] The purpose of the present invention is to propose a device for detecting the magnetic field stability after a rotor is magnetized to solve the problem that although today's magnetic field detection devices can detect the magnetic field, they only detect the strength of the magnetic field, the magnetic field stability cannot be comprehensively monitored, the flexibility of the detection device is poor, it cannot quickly provide various different forms of detection, and the actual application effect is poor.

[0005] To achieve the above object, the present invention adopts the following technical solution: A device for detecting the magnetic field stability after rotor magnetization, comprising a detection tank, an observation window is fixedly installed on the outer surface of the detection tank, a side frame is fixedly installed on one outer wall of the detection tank, a display is fixedly installed on the side frame, a rotating hole is arranged on the top surface of the detection tank, and a top cover is rotatably installed in the rotating hole. An internal magnetic field intensity detection ring and a plurality of internal meshing teeth are fixedly installed on the inner surface of the detection tank, and the internal magnetic field intensity detection ring is located above the plurality of internal meshing teeth;

[0006] A servo motor is fixedly installed on the inner wall of the top surface of the detection tank. One end of the output shaft of the servo motor is fixedly installed with an inner tank. The inner tank is made of a transparent material. An internal mounting frame and two scale rulers are fixedly installed inside the inner tank. The internal mounting frame is located at the middle position of the inner tank. The two scale rulers are located on both sides of the internal mounting frame. The internal mounting frame and the two scale rulers are parallel to each other. A rotor mounting component is slidably installed on the internal mounting frame, and the rotor mounting component is used for quickly and stably installing the rotor.

[0007] As a further description of the above technical solution:

[0008] The rotor mounting component includes a moving threaded block. The moving threaded block is slidably installed on the internal mounting frame through a chute provided at its bottom. A driving motor is fixedly installed on one outer wall of the inner tank. One end of the output shaft of the driving motor is fixedly installed with a transmission stud.

[0009] As a further description of the above technical solution:

[0010] The transmission stud is threadedly connected to a threaded hole provided inside the moving threaded block. Side pointing markers are fixedly installed on both outer walls of the moving threaded block. One end of the side pointing marker is in close contact with one outer surface of the scale ruler.

[0011] As a further description of the above technical solution:

[0012] Scale marks are provided on the outer surface of the scale ruler. An installation cover is rotatably installed on the top of the moving threaded block through a rotating shaft. A meshing gear ring is fixedly installed on the outside of the installation cover. The meshing gear ring and the top surface of the internal meshing teeth are on the same horizontal plane. A travel groove and an inner groove are provided on the bottom surface of the installation cover. A pressure-bearing component is movably installed inside the inner groove.

[0013] As a further description of the above technical solution:

[0014] The pressure-bearing component includes a longitudinal installation shaft. The longitudinal installation shaft is fixedly installed inside the inner groove. A pressure-bearing column is slidably installed on the outside of the longitudinal installation shaft. One end of the pressure-bearing column extends to the outside of the inner groove.

[0015] As a further description of the above technical solution:

[0016] A longitudinal sleeve spring is sleeved outside the longitudinal mounting shaft. Side mounting plates are fixedly installed on both outer walls of the pressure-bearing column, and a latch is fixedly installed on the top surface of the side mounting plate.

[0017] As a further description of the above technical solution:

[0018] Two positioning components are movably installed inside the travel groove. The positioning component includes a slider and a transverse mounting shaft. The transverse mounting shaft is horizontally and fixedly installed inside the travel groove. A transverse sleeve spring is sleeved outside the transverse mounting shaft, and a slider is slidably installed outside the transverse mounting shaft.

[0019] As a further description of the above technical solution:

[0020] One end of the transverse sleeve spring is fixedly connected to the side wall of the slider. The slider is slidably connected to the travel groove. A positioning arc plate is fixedly installed at the top end of the slider. A bottom locking hole is provided on the bottom surface of the slider, and one end of the latch is clamped inside the bottom locking hole.

[0021] As a further description of the above technical solution:

[0022] Two mounting brackets are fixedly installed at the top of the inner tank. A rotating hole is provided on the top surface of the mounting bracket, and a detection ring cleaning component is rotatably installed in the rotating hole. The detection ring cleaning component is used for synchronous cleaning of the built-in magnetic field intensity detection ring. The detection ring cleaning component includes a mounting shaft.

[0023] As a further description of the above technical solution:

[0024] The mounting shaft is rotatably installed in the rotating hole. A cleaning roller is fixedly installed at the top end of the mounting shaft. A built-in blower is fixedly installed inside the cleaning roller. A plurality of cleaning nozzles are provided on the outer surface of the cleaning roller. The cleaning roller is in rolling connection with the detection ring cleaning component. Dust discharge holes are provided at the bottoms of the inner tank and the detection tank.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. In the present invention, a movable and rotatable rotor mounting assembly is provided. When the magnetized rotor is detected, it is first installed in the rotor mounting assembly. At this time, the servo motor can be directly turned on, and the servo motor can control the rotation of the inner tank, thereby driving the magnetized rotor to rotate. At this time, the built-in magnetic field strength detection ring can perform magnetic field detection on the rotating rotor to detect the balance of the magnetic field strength. When it is necessary to perform magnetic field detection at different distances of a certain part of the rotor, the drive motor can be directly turned on to drive the transmission stud to rotate. The transmission stud can control the displacement of the rotor mounting assembly. At this time, the distance between the rotor and the built-in magnetic field strength detection ring changes, and the displacement distance can be seen by the mark on the scale marked by the side pointing card. The inner tank is controlled to rotate again, and the rotor is driven to do circular motion. At this time, the built-in magnetic field strength detection ring can also detect the fixed-point magnetic field of the rotor. It is necessary to realize the detection of the magnetic field at the closest distance. During the comprehensive magnetic field detection of the rotor, the rotor mounting assembly is directly controlled to move to the position where the meshing gear ring and the built-in meshing teeth mesh and stop, and the inner tank continues to be controlled to rotate. At this time, the mounting cover can make circular motion while rotating, so that the rotor installed therein can be rotated. At this time, the built-in magnetic field strength detection ring can perform all-round magnetic field detection on the rotor at the closest distance. Through the above rotor magnetic field detection at different distances and different movement modes, the magnetic field stability of the rotor after magnetization is comprehensively detected, and the final detection result will be displayed on the display. Through this design, a flexible and adjustable design is adopted, which can provide the rotor with a variety of magnetic field detection conditions at different distances and different movement modes, which is conducive to comprehensive monitoring of the stability of the rotor magnetic field after magnetization, greatly improving the actual application effect and comprehensiveness of the device, and the adjustment parameters can be clearly observed by external staff, which is easy to use.

[0027] 2. In the present invention, a pressure-bearing assembly and a positioning assembly are provided in the rotor mounting assembly. When the magnetized rotor is installed, the rotor is directly inserted longitudinally into the inner hole of the mounting cover. At this time, the pressure-bearing column is pressed inward and shrinks, and at the same time drives the side mounting plate and the bayonet to move downward. At this time, one end of the bayonet is separated from the bottom bayonet hole of the slider. At this time, the transverse sleeve spring loses its restriction, and pulls the slider and the positioning arc plate to move inward. The other positioning assembly moves at the same time. The two positioning assemblies can realize rapid positioning and installation of the rotor, ensure the stability of the rotor in subsequent magnetic field tests, and ensure the accuracy of the test results. Through this design, the rotor can be quickly installed without the aid of any external installation tools and installation accessories. In addition, the rotor has high stability after installation, and no unnecessary position will occur during detection, thereby improving the application effect of the device.

[0028] 3. In the present invention, a detection ring cleaning assembly is provided. During the detection process, when the inner tank rotates, it can drive the detection ring cleaning assembly to perform a circular motion synchronously. At this time, the cleaning roller can roll on the outer surface of the built-in magnetic field intensity detection ring, effectively cleaning the built-in magnetic field intensity detection ring. During this process, the fan in the cleaning roller can be turned on, and air can be blown out through the cleaning air nozzle to synchronously clean the dust on the built-in magnetic field intensity detection ring. Through this design, while detecting the magnetic field stability of the rotor, the detection structure can be cleaned synchronously, avoiding dust adhesion on the detection structure and resulting in a decrease in detection accuracy, thereby improving the application effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of a device for detecting the magnetic field stability after rotor magnetization.

[0030] Figure 2 It is a three-dimensional structural schematic diagram of a device for detecting the magnetic field stability after rotor magnetization with the top cover removed.

[0031] Figure 3 It is an exploded three-dimensional structural schematic diagram of the stirring tank in a device for detecting the magnetic field stability after rotor magnetization.

[0032] Figure 4 It is an exploded three-dimensional structural schematic diagram of the inner tank in a device for detecting the magnetic field stability after rotor magnetization.

[0033] Figure 5 It is an exploded three-dimensional structural schematic diagram of the rotor installation assembly and the transmission stud in a device for detecting the magnetic field stability after rotor magnetization.

[0034] Figure 6 It is a three-dimensional structural schematic diagram of the inner tank in a device for detecting the magnetic field stability after rotor magnetization.

[0035] Figure 7 It is a device for detecting the magnetic field stability after rotor magnetization Figure 4 The enlarged structural schematic diagram at position A.

[0036] Figure 8 It is an exploded three-dimensional structural schematic diagram of the pressure-bearing assembly and the positioning assembly in a device for detecting the magnetic field stability after rotor magnetization.

[0037] Figure 9 It is a device for detecting the magnetic field stability after rotor magnetization Figure 2 The enlarged structural schematic diagram at position B.

[0038] Figure 10 It is a three-dimensional structural schematic diagram of the detection ring cleaning assembly in a device for detecting the magnetic field stability after rotor magnetization.

[0039] Legend:

[0040] 1. Display; 2. Top cover; 3. Detection tank; 4. Observation window; 5. Built-in magnetic field intensity detection ring; 6. Built-in meshing teeth; 7. Inner tank; 8. Rotor mounting assembly; 81. Meshing gear ring; 82. Mounting cover; 83. Moving threaded block; 84. Side pointing calibration mark; 85. Stroke groove; 9. Detection ring cleaning assembly; 91. Cleaning roller; 92. Cleaning air nozzle; 93. Mounting shaft; 10. Transmission stud; 11. Driving motor; 12. Scale; 13. Mounting frame; 14. Servo motor; 15. Pressure-bearing assembly; 151. Pressure-bearing column; 152. Longitudinal sleeve spring; 153. Longitudinal mounting shaft; 154. Pin; 155. Side mounting plate; 16. Positioning assembly; 161. Positioning arc plate; 162. Slide block; 163. Bottom card hole; 164. Transverse mounting shaft; 165. Transverse sleeve spring; 17. Built-in mounting frame; 18. Scale mark. Detailed implementation manner

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1-10 , the present invention provides a technical solution: a device for detecting the magnetic field stability after rotor magnetization, including a detection tank 3, an observation window 4 is fixedly installed on the outer surface of the detection tank 3, a side frame is fixedly installed on one outer wall of the detection tank 3, and a display 1 is fixedly installed on the side frame. A rotating hole is provided on the top surface of the detection tank 3, and a top cover 2 is rotatably installed in the rotating hole. A built-in magnetic field intensity detection ring 5 and a plurality of built-in meshing teeth 6 are fixedly installed on the inner surface of the detection tank 3, and the built-in magnetic field intensity detection ring 5 is located above the plurality of built-in meshing teeth 6;

[0043] A servo motor 14 is fixedly installed on the inner wall of the top surface of the detection tank 3. One end of the output shaft of the servo motor 14 is fixedly installed with an inner tank 7. The inner tank 7 is made of a transparent material. A built-in mounting frame 17 and two scales 12 are fixedly installed inside the inner tank 7. The built-in mounting frame 17 is located at the middle position of the inner tank 7, and the two scales 12 are located on both sides of the built-in mounting frame 17. The built-in mounting frame 17 and the two scales 12 are parallel to each other. A rotor mounting assembly 8 is slidably installed on the built-in mounting frame 17, and the rotor mounting assembly 8 is used for quickly and stably installing the rotor.

[0044] The rotor mounting assembly 8 includes a moving threaded block 83 which is slidably mounted on the built-in mounting frame 17 through a chute provided at its bottom. A driving motor 11 is fixedly mounted on an outer wall of one side of the inner tank 7. One end of an output shaft of the driving motor 11 is fixedly mounted with a transmission stud 10. The transmission stud 10 is in threaded connection with a threaded hole provided inside the moving threaded block 83. Side pointing markers 84 are fixedly mounted on outer walls on both sides of the moving threaded block 83. One end of the side pointing marker 84 is in close contact with an outer surface of one side of the scale 12.

[0045] The specific implementation method is as follows: When detecting the magnetized rotor, first install it in the rotor mounting assembly 8. At this time, the servo motor 14 can be directly turned on. The servo motor 14 can control the rotation of the inner tank 7, thereby driving the magnetized rotor to rotate. At this time, the built-in magnetic field intensity detection ring 5 can detect the magnetic field of the rotating rotor and detect the balance degree of the magnetic field intensity. When it is necessary to detect the magnetic field at different distances of a certain part of the rotor, the driving motor 11 can be directly turned on to drive the transmission stud 10 to rotate. The transmission stud 10 can control the displacement of the rotor mounting assembly 8. At this time, the distance between the rotor and the built-in magnetic field intensity detection ring 5 changes, and the displacement distance can be seen through the mark of the side pointing marker 84 on the scale 12. Then, control the rotation of the inner tank 7 again, and the rotor will be driven to make a circular motion. At this time, the built-in magnetic field intensity detection ring 5 can also detect the fixed-point magnetic field of the rotor. When it is necessary to perform a comprehensive magnetic field detection of the rotor at the closest distance, directly control the displacement of the rotor mounting assembly 8 to stop at the position where the meshing gear ring 81 meshes with the built-in meshing gear 6. Continue to control the rotation of the inner tank 7. At this time, the mounting cover 82 can rotate while making a circular motion, so as to be able to rotate the rotor installed therein. At this time, the built-in magnetic field intensity detection ring 5 can perform a comprehensive magnetic field detection of the rotor at the closest distance. Through the magnetic field detection of the rotor at different distances and different motion modes above, the magnetic field stability of the magnetized rotor is comprehensively detected, and the final detection result will be displayed on the display 1.

[0046] Through this design, with a flexible and adjustable design, it can provide the rotor with magnetic field detection conditions of various different distances and different motion modes, which is beneficial to comprehensively monitor the magnetic field stability of the magnetized rotor, greatly improving the actual application effect and comprehensiveness of use of this device, and the adjustment parameters can be clearly observed by external staff, which is convenient to use.

[0047] A scale mark 18 is provided on the outer surface of the scale 12, and a mounting cover 82 is rotatably installed on the top of the movable threaded block 83 through a rotating shaft. A meshing gear ring 81 is fixedly installed on the outside of the mounting cover 82, and the meshing gear ring 81 and the top surface of the built-in meshing gear 6 are located on the same horizontal plane. A travel groove 85 and an inner groove are provided on the bottom surface of the mounting cover 82, and a pressure-bearing component 15 is movably installed inside the inner groove. The pressure-bearing component 15 includes a longitudinal mounting shaft 153, and the longitudinal mounting shaft 153 is fixedly installed inside the inner groove. A pressure-bearing column 151 is slidably installed on the outside of the longitudinal mounting shaft 153, and one end of the pressure-bearing column 151 extends to the outside of the inner groove. A longitudinal sleeve spring 152 is sleeved on the outside of the longitudinal mounting shaft 153, and side mounting plates 155 are fixedly installed on the outer walls of both sides of the pressure-bearing column 151, and a bayonet 154 is fixedly installed on the top surface of the side mounting plate 155.

[0048] Two positioning components 16 are movably installed inside the travel groove 85, and the positioning component 16 includes a slider 162 and a transverse mounting shaft 164. The transverse mounting shaft 164 is transversely fixedly installed inside the travel groove 85, and a transverse mounting spring 165 is sleeved on the outside of the transverse mounting shaft 164. The slider 162 is slidably installed on the outside of the transverse mounting shaft 164, and one end of the transverse mounting spring 165 is fixedly connected to the side wall of the slider 162. The slider 162 is slidably connected to the travel groove 85. A positioning arc plate 161 is fixedly installed on the top of the slider 162, and a bottom clamping hole 163 is provided on the bottom surface of the slider 162. One end of the bayonet 154 is embedded in the inside of the bottom clamping hole 163.

[0049] The specific implementation method is as follows: when installing the magnetized rotor, the rotor is directly inserted longitudinally into the inner hole of the mounting cover 82. At this time, the pressure-bearing column 151 is pressed inward and shrinks, and at the same time drives the side mounting plate 155 and the bayonet 154 to move downward. At this time, one end of the bayonet 154 is disengaged from the bottom bayonet hole 163 of the slider 162. At this time, the transverse sleeve spring 165 loses its restriction, pulling the slider 162 and the positioning arc plate 161 to move inward, and the other positioning component 16 moves at the same time. The two positioning components 16 can realize the rapid positioning and installation of the rotor, ensure the stability of the rotor in subsequent magnetic field tests, and ensure the accuracy of the test results.

[0050] Through this design, the rotor can be quickly installed without the aid of any external installation tools and installation accessories. After installation, the rotor has high stability and no unnecessary positions will occur during detection, thereby improving the application effect of the device.

[0051] Two mounting brackets 13 are fixedly installed at the top of the inner tank 7. A rotating hole is provided on the top surface of the mounting bracket 13, and a detection ring cleaning assembly 9 is rotatably installed in the rotating hole. The detection ring cleaning assembly 9 is used for synchronous cleaning of the built-in magnetic field intensity detection ring 5. The detection ring cleaning assembly 9 includes a mounting shaft 93. The mounting shaft 93 is rotatably installed in the rotating hole. A cleaning roller 91 is fixedly installed at the top end of the mounting shaft 93. A built-in blower is fixedly installed inside the cleaning roller 91. A number of cleaning nozzles 92 are provided on the outer surface of the cleaning roller 91. The cleaning roller 91 is in rolling connection with the detection ring cleaning assembly 9. Dust discharge holes are provided at the bottoms of both the inner tank 7 and the detection tank 3.

[0052] The specific implementation method is as follows: During the detection process, when the inner tank 7 rotates, it can drive the detection ring cleaning assembly 9 to perform a circular motion synchronously. At this time, the cleaning roller 91 can roll on the outer surface of the built-in magnetic field intensity detection ring 5 to effectively clean the built-in magnetic field intensity detection ring 5. During this process, the blower in the cleaning roller 91 can be turned on, and air is blown out through the cleaning nozzles 92 to synchronously clean the dust on the built-in magnetic field intensity detection ring 5. Through this design, it is possible to synchronously clean the detection structure while detecting the magnetic field stability of the rotor, avoiding dust adhesion on the detection structure and resulting in a decrease in detection accuracy, thereby improving the application effect of the equipment.

[0053] Working principle: When detecting the magnetized rotor, first install it in the rotor mounting assembly 8. At this time, the servo motor 14 can be directly turned on. The servo motor 14 can control the rotation of the inner tank 7, thereby driving the magnetized rotor to rotate. At this time, the built-in magnetic field intensity detection ring 5 can detect the magnetic field of the rotating rotor and detect the uniformity of the magnetic field intensity. When it is necessary to detect the magnetic field at different distances of a certain part of the rotor, the drive motor 11 can be directly turned on to drive the transmission stud 10 to rotate. The transmission stud 10 can control the displacement of the rotor mounting assembly 8. At this time, the distance between the rotor and the built-in magnetic field intensity detection ring 5 changes, and the displacement distance can be seen through the mark of the side pointing calibration mark 84 on the scale 12. Then, control the inner tank 7 to rotate again, and the rotor is driven to perform a circular motion. At this time, the built-in magnetic field intensity detection ring 5 can also detect the fixed-point magnetic field of the rotor. When it is necessary to achieve a comprehensive magnetic field detection of the rotor at the closest distance, directly control the rotor mounting assembly 8 to displace to the position where the meshing gear ring 81 meshes with the built-in meshing tooth 6 and stop. Continue to control the inner tank 7 to rotate. At this time, the mounting cover 82 can rotate while performing a circular motion, so as to be able to rotate the rotor installed therein. At this time, the built-in magnetic field intensity detection ring 5 can perform a comprehensive magnetic field detection of the rotor at the closest distance. Through the above magnetic field detection of the rotor at different distances and different motion modes, the magnetic field stability of the magnetized rotor is comprehensively detected, and the final detection result will be displayed on the display 1;

[0054] When installing the magnetized rotor, the rotor is directly longitudinally interpolated into the inner hole of the installation cover 82. At this time, the pressure-bearing column 151 is pressed and contracts inward, driving the side installation plate 155 and the latch 154 to move downward. At this time, one end of the latch 154 disengages from the bottom locking hole 163 of the slider 162. At this time, the laterally sleeved spring 165 loses its restriction, pulling the slider 162 and the positioning arc plate 161 to move inward, and the other positioning assembly 16 moves simultaneously. The two positioning assemblies 16 can quickly position and install the rotor, ensuring the stability of the rotor in subsequent magnetic field tests and the accuracy of test results.

[0055] During the detection process, when the inner tank 7 rotates, it can drive the detection ring cleaning assembly 9 to perform a circular motion synchronously. At this time, the cleaning roller 91 can roll on the outer surface of the built-in magnetic field intensity detection ring 5 to effectively clean the built-in magnetic field intensity detection ring 5. During this process, the fan in the cleaning roller 91 can be turned on, and air is blown out through the cleaning air nozzle 92 to synchronously clean the dust on the built-in magnetic field intensity detection ring 5.

[0056] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A magnetic field stability detection device for a rotor after magnetization, comprising a detection tank (3), characterized in that: An observation window (4) is fixedly installed on the outer surface of the detection tank (3). A side frame is fixedly installed on one outer wall of the detection tank (3), and a display (1) is fixedly installed on the side frame. A rotating hole is provided on the top surface of the detection tank (3), and a top cover (2) is rotatably installed in the rotating hole. An internal magnetic field intensity detection ring (5) and a plurality of internal meshing teeth (6) are fixedly installed on the inner surface of the detection tank (3), and the internal magnetic field intensity detection ring (5) is located above the plurality of internal meshing teeth (6). A servo motor (14) is fixedly installed on the inner wall of the top surface of the detection tank (3). One end of the output shaft of the servo motor (14) is fixedly installed with an inner tank (7). The inner tank (7) is made of a transparent material. An internal mounting frame (17) and two scale rulers (12) are fixedly installed inside the inner tank (7). The internal mounting frame (17) is located at the middle position of the inner tank (7), and the two scale rulers (12) are located on both sides of the internal mounting frame (17). The internal mounting frame (17) and the two scale rulers (12) are parallel to each other. A rotor mounting assembly (8) is slidably installed on the internal mounting frame (17). The rotor mounting assembly (8) is used to detect the quick and stable installation of the rotor. The rotor mounting assembly (8) includes a moving threaded block (83). The moving threaded block (83) is slidably installed on the internal mounting frame (17) through a chute provided at its bottom. A driving motor (11) is fixedly installed on one outer wall of the inner tank (7). One end of the output shaft of the driving motor (11) is fixedly installed with a transmission stud (10). The transmission stud (10) is threadedly connected to a threaded hole provided inside the moving threaded block (83). Side pointing markers (84) are fixedly installed on both outer walls of the moving threaded block (83). One end of the side pointing marker (84) is in close contact with the outer surface of one side of the scale ruler (12). Scale marks (18) are provided on the outer surface of the scale ruler (12). An installation cover (82) is rotatably installed on the top of the moving threaded block (83) through a rotating shaft. A meshing gear ring (81) is fixedly installed on the outside of the installation cover (82). The meshing gear ring (81) and the top surface of the internal meshing teeth (6) are on the same horizontal plane. A travel groove (85) and an inner groove are provided on the bottom surface of the installation cover (82). A pressure-bearing assembly (15) is movably installed inside the inner groove.

2. The magnetic field stability detection device for a rotor after magnetization according to claim 1, wherein The pressure-bearing assembly (15) includes a longitudinal installation shaft (153). The longitudinal installation shaft (153) is fixedly installed inside the inner groove. A pressure-bearing column (151) is slidably installed on the outside of the longitudinal installation shaft (153). One end of the pressure-bearing column (151) extends to the outside of the inner groove.

3. A rotor magnetic field stability detection device after magnetization according to claim 2, characterized in that A longitudinal sleeve spring (152) is sleeved on the outside of the longitudinal installation shaft (153). Side mounting plates (155) are fixedly installed on both outer walls of the pressure-bearing column (151). A pin (154) is fixedly installed on the top surface of the side mounting plate (155).

4. A magnetic field stability detection device for a rotor after magnetization according to claim 3, characterized in that, Two positioning components (16) are movably installed inside the travel groove (85). The positioning component (16) includes a slider (162) and a transverse mounting shaft (164). The transverse mounting shaft (164) is horizontally and fixedly installed inside the travel groove (85). A transverse sleeve spring (165) is sleeved outside the transverse mounting shaft (164). The slider (162) is slidably installed outside the transverse mounting shaft (164).

5. A magnetic field stability detection device for a rotor after magnetization according to claim 4, characterized in that One end of the transverse sleeve spring (165) is fixedly connected to the side wall of the slider (162). The slider (162) is slidably connected to the travel groove (85). A positioning arc plate (161) is fixedly installed at the top of the slider (162). A bottom card hole (163) is provided on the bottom surface of the slider (162). One end of the pin (154) is snapped into the inside of the bottom card hole (163).

6. The magnetic field stability detection device for a rotor after magnetization according to claim 5, characterized in that, Two mounting brackets (13) are fixedly installed at the top of the inner tank (7). A rotating hole is provided on the top surface of the mounting bracket (13). A detection ring cleaning component (9) is rotatably installed in the rotating hole. The detection ring cleaning component (9) is used for synchronous cleaning of the built-in magnetic field intensity detection ring (5). The detection ring cleaning component (9) includes a mounting shaft (93).

7. A magnetic field stability detection device for a rotor after magnetization, according to claim 6, characterized in that, The mounting shaft (93) is rotatably installed in the rotating hole. A cleaning roller (91) is fixedly installed at the top of the mounting shaft (93). A built-in blower is fixedly installed inside the cleaning roller (91). A plurality of cleaning nozzles (92) are provided on the outer surface of the cleaning roller (91). The cleaning roller (91) is in rolling connection with the detection ring cleaning component (9). Dust discharge holes are provided at the bottoms of both the inner tank (7) and the detection tank (3).

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