Magnetic suspension motor detection device

Abstract

The invention relates to a magnetic suspension motor detection device, and relates to the technical field of detection devices.The magnetic suspension motor detection device comprises a bottom plate, a workbench is arranged at the center of the top of the bottom plate, a lower detection table is arranged at the top of the workbench, a hinge is arranged on one side of the outer wall of the lower detection table, and the lower detection table is connected with an upper detection table through the hinge; a groove is formed in the lower detection table, a spring plate assembly is arranged in the groove, a detection probe is arranged on one side of the spring plate assembly, a connecting assembly is arranged on one side of the detection probe, a driving mechanism is arranged in the upper detection table, an arc-shaped pressing plate is arranged on one side of the driving mechanism, and a rotating shaft is arranged on one side of a hinge. Through the design of the modularized probe, the self-adaptive clamping mechanism and the linkage power supply, the rapid synchronous detection of the electrical and magnetic properties of the magnetic suspension motor is realized, the efficiency and the precision are remarkably improved, the manual intervention is reduced, and the requirements of multiple models are met.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a testing equipment for magnetic levitation motors. Background Technology

[0002] In today's industrial development trend that pursues high efficiency, energy conservation, and high performance, magnetic levitation motors, with their significant advantages such as no mechanical contact, low friction, high speed, and low energy consumption, are gradually emerging in many key fields, and their market prospects are extremely broad. From compressors, vacuum pumps, and blowers in industrial production, to magnetic levitation train drive systems in rail transit, and then to core power units in precision instruments and equipment, the application scope of magnetic levitation motors is constantly expanding, and market demand continues to rise.

[0003] After the magnetic levitation motor is manufactured, its electrical and magnetic properties need to be tested. Current magnetic levitation motor testing technology has many pain points. It is necessary to connect various connectors for testing to the magnetic levitation motor in order to test the motor, which is quite troublesome. Testers need to manually connect multiple test probes and repeatedly adjust the measurement positions. Not only is the operation cumbersome, but also because the process is scattered, a complete test takes a long time.

[0004] In response to the aforementioned technologies, a solution is proposed. Summary of the Invention

[0005] The purpose of this application is to provide a magnetic levitation motor testing device to solve the technical problem in the prior art that requires connecting various testing connectors to the magnetic levitation motor in order to test the motor.

[0006] The magnetic levitation motor testing device provided in this application adopts the following technical solution: A magnetic levitation motor testing device includes a base plate, a worktable at the top center of the base plate, a lower testing platform on top of the worktable, a hinge on one side of the outer wall of the lower testing platform, and an upper testing platform connected to the lower testing platform via the hinge. The lower testing platform has four sets of slots evenly arranged along the horizontal direction of the lower testing platform. A spring plate assembly is installed inside each slot. A testing probe is installed on one side of the spring plate assembly, and a connecting assembly is installed on one side of the testing probe. A drive mechanism is installed inside the upper testing platform. An arc-shaped pressure plate is installed on one side of the drive mechanism. A rotating shaft is installed on one side of the hinge, a connecting rod is installed on one side of the rotating shaft, and an electrical box is installed on one side of the connecting rod.

[0007] By adopting the above technical solution, the base plate serves as the basic support platform for the device. The workbench at the top center of the base plate and the lower detection platform form a stable detection reference surface. The upper and lower detection platforms, connected by hinges, adopt a matching arc-shaped cross-section design, allowing the upper detection platform to rotate and open vertically, enabling the rapid placement and clamping of the magnetic levitation motor. Inside the lower detection platform, four sets of horizontally evenly arranged slots and spring plate assemblies constitute an adaptive adjustment mechanism. When the motor is placed, the spring plate assembly, through the elastic deformation of the telescopic springs, drives the detection probe to automatically fit against the motor surface, eliminating the need for repeated manual probe adjustments. The connecting assembly integrates and processes multiple probe signals, and, in conjunction with the arc-shaped pressure plate driven by the drive mechanism, applies uniform pressure to the motor, ensuring the stability of the probe-motor contact during the detection process. The rotating shaft and connecting rod transmit the mechanical movement of the upper detection platform to the power control module in the electrical box, achieving synchronous linkage between the opening and closing state and power supply. This design integrates traditional decentralized testing processes into a unified operation through the synergistic effect of mechanical structure and electrical system. The invention utilizes a modular layout of spring plate assemblies and slotted sections to achieve synchronous adaptive positioning of multiple probes, solving the problems of poor contact and low efficiency caused by manual connection in traditional testing. Furthermore, the arc-matching design of the upper and lower testing platforms and the linkage drive mechanism simplify the motor clamping steps while ensuring uniform distribution of testing pressure, avoiding localized overpressure damage to the motor housing. The mechanical transmission design of the rotating shaft and connecting rod automatically triggers power on / off during device opening and closing, reducing manual intervention. Ultimately, this achieves a triple technical effect of improving testing efficiency, ensuring measurement accuracy, and reducing operational difficulty.

[0008] Preferably, each of the four corners of the base plate is provided with a movable roller, the cross-section of the lower inspection platform and the upper inspection platform is arc-shaped and the cross-section of the lower inspection platform and the upper inspection platform are the same, the upper inspection platform can rotate along the vertical direction of the lower inspection platform through the hinge, and a fixing buckle is provided on one side of the outer wall of the upper inspection platform.

[0009] By adopting the above solution, the movable rollers at the four corners of the base plate enable the device to move flexibly, facilitating rapid switching between different testing scenarios. The lower and upper testing platforms adopt a matching arc-shaped cross-section design, combined with a hinge-based vertical rotation structure, allowing the motor to be positioned with a single opening and closing action, significantly simplifying the traditional testing process that requires repeated adjustments to the motor angle. The design of the fixing buckle ensures the mechanical stability of the upper testing platform after it is closed, preventing poor contact due to vibration during testing. This structure achieves rapid alignment between the motor and the testing platform through geometric matching principles, and the arc-shaped contact surface can adapt to the circumferential coverage requirements of motors with different diameters.

[0010] Preferably, a guide plate is provided at the top of the slot, and two sets of guide plates are provided, which are symmetrically arranged along the horizontal direction of the slot, so that the spring plate assembly can move up and down along the vertical direction of the guide plate.

[0011] By adopting the above scheme, two sets of guide plates are symmetrically arranged at the top of the slot. Utilizing the bidirectional limiting channel formed by their horizontally symmetrical layout, the spring plate assembly is forced to move only in a vertical linear direction, thus eliminating the radial offset problem caused by manual probe adjustment in traditional testing. The core principle of this design is that the synergistic effect of the guide plates and the slot creates a geometric constraint, ensuring that the receiving plate remains parallel to the axis of the lower testing platform during the compression / rebound of the telescopic spring. This ensures that the five probe assemblies form an equidistant ring detection array on the motor surface. Its innovation lies in the deep coupling of the mechanical guiding structure and the electrical testing module. When the arc-shaped pressure plate presses down on the motor, the spring plate assembly, constrained by the guide plates, only undergoes axial deformation, forcing the probe assembly to adhere tightly to the outer wall of the motor with constant pressure. This avoids signal fluctuations caused by poor contact and prevents local magnetic field distortion through uniform pressure distribution.

[0012] Preferably, the spring plate assembly includes a receiving plate and a telescopic spring. The receiving plate is arc-shaped, and a telescopic spring is provided at the bottom of the receiving plate. Several sets of telescopic springs are provided, and each set of telescopic springs is evenly arranged along the circumference of the receiving plate.

[0013] By adopting the above scheme, the arc-shaped receiving plate of the spring plate assembly is adapted to the slotted structure of the lower detection platform, and together with several telescopic springs evenly distributed along the circumference at the bottom, a multi-directional elastic support system is formed. When the upper detection platform is closed by pressing down the hinge, the arc-shaped pressure plate presses the motor into the detection area of ​​the lower detection platform. At this time, the motor housing contacts the receiving plate and compresses the telescopic springs, so that the detection probe automatically fits the different detection points on the motor surface under the action of spring force. This design adapts to motor housings of different diameters through elastic deformation, avoiding equipment damage caused by rigid contact while ensuring close contact between the probe and the motor surface. The evenly distributed telescopic springs further balance the contact pressure at each detection point, eliminating the problem of uneven pressure caused by traditional manual adjustment of probe position, thereby improving the stability and consistency of the detection of parameters such as resistance and magnetic field strength. At the same time, the modular spring plate assembly structure makes it easy to replace telescopic springs of different stiffness or adjust the layout according to the motor model, enhancing the compatibility of the device with motors of different specifications.

[0014] Preferably, the detection probe includes a probe assembly, a probe base, and a connecting wire. The probe assembly is provided in five groups, and the five groups of probe assemblies are evenly arranged along the gap between the spring plate assembly and the lower detection stage. A probe base is provided on one side of the probe assembly, and a connecting wire is provided on one side of the probe base.

[0015] By adopting the above scheme, the detection probe uses five sets of probe assemblies evenly distributed along the gap between the spring plate assembly and the lower detection stage. Combined with the elastic support structure of the arc-shaped receiving plate, this allows the probe assemblies to form multi-point adaptive contact with the motor surface through the probe base, ensuring synchronous acquisition of electrical signals and magnetic field distribution. The connecting wires are integrated into the slot using shielded wiring, avoiding external interference and maintaining neat wiring. The modular quick-release design of the probe base allows for rapid replacement or expansion of the probe assemblies. This design, through spatial symmetrical layout and elastic contact mechanism, automatically compensates for motor shape tolerances without requiring manual adjustment of the probe position, ensuring that the five sets of probe assemblies synchronously fit the motor detection surface. This significantly improves the consistency of resistance, inductance, and magnetic field parameter detection. Simultaneously, the direct connection between the connecting wires and the indicator lights simplifies the troubleshooting process and provides a hardware foundation for multi-channel parallel testing.

[0016] Preferably, the connection assembly includes a housing, a main board, a control switch, indicator lights, and a wiring interface. The main board is housed inside the housing, and the control switch is located on one side of the outer wall of the housing. One side of the control switch is connected to the main board, and the other side of the control switch is equipped with five indicator lights, which are evenly arranged along the horizontal direction of the housing. Each group of probe components and indicator lights is connected via the connecting cable. A wiring interface is located on one side of each indicator light group.

[0017] By adopting the above scheme, the housing of the connecting component integrates a motherboard as the control hub, forming a one-to-one signal transmission link with five evenly arranged probe components via connecting cables. Combined with real-time status feedback from the indicator lights, the detection data is visualized. The control switch allows the operator to directly switch between different detection modes, while the connection interface enables rapid data exchange with external devices. This design centrally processes multi-probe detection signals through a modular circuit layout, avoiding signal interference problems caused by traditional branch connections. Furthermore, the motherboard's programmed control enables simultaneous acquisition and analysis of electrical and magnetic performance parameters, significantly improving the integration and ease of operation of the detection system. Simultaneously, the zoned indication function of the indicator lights can intuitively locate abnormal detection points, providing clear guidance for subsequent fault diagnosis.

[0018] Preferably, the driving mechanism includes a dustproof box, a driving rod, a bevel gear, and a driven wheel. The driving rod is located at the center of the dustproof box, and the bevel gear is located on the outer wall of the driving rod. There are three sets of bevel gears, and the three sets of bevel gears are evenly arranged along the horizontal direction of the driving rod. The driven wheel is connected to one side of the bevel gear.

[0019] By adopting the above scheme, the drive mechanism, through the linkage design of three sets of bevel gears inside the dustproof box and the drive rod, achieves the meshing transmission between the bevel gears and the driven wheel under the drive of the rotating handle, and then controls the vertical displacement of the arc-shaped pressure plate through the telescopic rod. This structure not only increases the torque output through multi-stage gear transmission, ensuring the stable pressing of the arc-shaped pressure plate against the motor housing, but also isolates the gear set operation from external impurities through the dustproof box; at the same time, the cooperation between the auxiliary gear and the rack further enhances the synchronicity and accuracy of the arc-shaped pressure plate displacement, making the contact pressure between the detection probe and the motor surface uniform and adjustable.

[0020] Preferably, a telescopic rod is provided below the driven wheel, and the driven wheel is connected to the top of the arc-shaped pressure plate through the telescopic rod, so that the arc-shaped pressure plate can move up and down along the vertical direction of the upper detection platform, and a rubber pad is provided on one side of the arc-shaped pressure plate.

[0021] By adopting the above scheme, the linkage design between the drive mechanism and the arc-shaped pressure plate further enhances the automation adaptability of the detection device: the bevel gear set drives the three driven wheels to move synchronously through the rotation of the drive rod, causing the telescopic rod to push the arc-shaped pressure plate vertically downward. This pressure is evenly transmitted to the motor housing through the rubber pad, which avoids surface damage from rigid contact and ensures that the detection probe and the motor maintain a constant contact pressure. At the same time, the telescopic spring in the spring plate assembly undergoes adaptive deformation under the action of the arc-shaped pressure plate, and the pressure is evenly distributed to the four sets of detection probes in the slots through the arc-shaped structure of the receiving plate, forming a bidirectional dynamic balance. This design not only enables rapid clamping and positioning of motors of different sizes, but also eliminates the manual adjustment of probes through mechanical linkage, improving the stability of contact resistance in electrical performance testing and ensuring the consistency of probe spacing during magnetic performance measurement.

[0022] Preferably, a sleeve is provided on one side of the drive rod, and a rotating handle is provided on one side of the sleeve. The rotating handle can be displaced along the horizontal direction of the drive rod through the sleeve. An auxiliary gear is provided on the outer wall of the dust box. Several sets of auxiliary gears are provided, and each set of auxiliary gears is evenly arranged along the horizontal direction of the dust box. A rack is provided on one side of the auxiliary gear. The bottom of the rack is connected to the top of the arc-shaped pressure plate, and the rack can be displaced up and down along the vertical direction of the upper detection platform.

[0023] By adopting the above scheme, the drive rod achieves horizontal displacement adjustment through the sliding engagement of the sleeve and the rotary handle, allowing the operator to flexibly control the meshing depth of the bevel gear and the driven wheel according to the motor size, thereby precisely adjusting the downward pressure of the arc-shaped pressure plate. The auxiliary gear and rack set on the outer wall of the dust box form a vertical transmission chain. When the rotary handle drives the bevel gear set, the rack drives the arc-shaped pressure plate to move stably in the vertical direction of the upper detection platform, which not only avoids the problem of easy jamming in traditional screw transmission, but also disperses the load pressure through multi-stage gears. The telescopic springs of the rubber pad and spring plate assembly work together to ensure that the motor is firmly fixed while avoiding damage to the outer shell.

[0024] Preferably, the electrical box is equipped with a power supply assembly. One side of the power supply assembly is provided with a power supply socket, and the other side of the power supply assembly is provided with a slide rail. There are two sets of slide rails, and the two sets of slide rails are evenly arranged along the horizontal direction of the electrical box. The outer wall of the slide rail is provided with a sliding contact. One side of the sliding contact is connected to the connecting rod, so that when the upper detection platform rotates, the sliding contact is driven by the connecting rod to move up and down along the vertical direction of the slide rail.

[0025] By adopting the above scheme, the sliding rail and sliding contact linkage mechanism installed in the electrical box are mechanically coupled with the rotation of the upper testing platform through the connecting rod. When the upper testing platform rotates around the hinge to open or close, the connecting rod drives the sliding contact to move vertically along the sliding rail, automatically switching the on and off state of the power supply component without manual intervention in the connection operation of the power supply socket. This design maintains the continuity of the overall testing process and realizes the start and stop control of the testing device through mechanical linkage. It avoids interface wear caused by frequent plugging and unplugging, and ensures the safety logic of automatic conduction of the testing circuit when the upper testing platform is closed and automatic power-off when it is opened.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting four sets of evenly arranged slotted and spring plate assemblies inside the lower testing platform, along with multiple sets of testing probes and connecting components, simultaneous testing of the electrical and magnetic properties of the magnetic levitation motor is achieved. The arc-shaped cross-section design and rotatable structure of the upper and lower testing platforms further simplify the motor placement process, avoiding the tedious operation of connecting probes one by one in traditional testing, and significantly improving testing efficiency; 2. The bevel gear and driven wheel drive the arc-shaped pressure plate to move vertically. Combined with the telescopic spring and guide plate of the spring plate assembly, it can adapt to the clamping requirements of motors of different sizes, ensuring that the detection probe is in close contact with the motor surface. The rubber pad design protects the motor housing and enhances contact stability, thereby improving the measurement accuracy of parameters such as resistance and magnetic field strength. 3. The linkage design of the slide rail and sliding contacts inside the electrical box allows the power connection status to be automatically adjusted via a linkage when the upper testing platform rotates, avoiding frequent plugging and unplugging of the power supply socket. The rotating handle and rack and pinion structure simplify the operation of the drive mechanism, and together with the moving rollers, enable flexible movement of the device to meet the needs of multi-station testing and reduce the intensity of manual intervention; 4. The probe assemblies and indicator lights are connected one-to-one via cables. The mainboard can integrate multiple testing programs, and users can quickly switch test modes via a control switch. The modular design of the slotted and spring plate assemblies supports flexible adjustment of the number and position of probes, adapting to the testing needs of different motor models, enhancing the device's versatility and potential for technological upgrades. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the magnetic levitation motor testing device of this application; Figure 2 This is a side view of the magnetic levitation motor testing device of this application; Figure 3 This is a side-view perspective structural diagram of the magnetic levitation motor testing device of this application; Figure 4 This is a partial three-dimensional structural diagram of the connecting components and detection probe of the magnetic levitation motor detection device of this application; Figure 5 This is a partial three-dimensional structural diagram of the electrical box of the magnetic levitation motor testing device of this application; Figure 6 This is a cross-sectional view of the upper testing platform and drive mechanism of the magnetic levitation motor testing device of this application; Figure 7 This is a partial three-dimensional structural diagram of the lower testing platform of the magnetic levitation motor testing device of this application; Figure 8 This is a partial cross-sectional view of the lower testing platform and connecting components of the magnetic levitation motor testing device of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Workbench; 3. Lower inspection table; 4. Hinge; 5. Upper inspection table; 6. Slot; 7. Spring plate assembly; 701. Receiving plate; 702. Telescopic spring; 8. Inspection probe; 801. Probe assembly; 802. Probe base; 803. Connecting cable; 9. Connecting assembly; 901. Housing; 902. Main board; 903. Control switch; 904. Indicator light group; 905. Wiring interface; 10. Driver 11. Moving mechanism; 12. Arc-shaped pressure plate; 13. Rotating shaft; 14. Connecting rod; 15. Electrical box; 16. Moving roller; 17. Fixing buckle; 18. Guide plate; 19. Dustproof box; 20. Drive rod; 21. Bevel gear; 22. Driven wheel; 23. Telescopic rod; 24. Sleeve; 25. Rotating handle; 26. Auxiliary gear; 27. Rack; 28. Rubber pad; 29. ​​Power supply assembly; 30. Power supply socket; 31. Slide rail; 32. Sliding contact. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail below.

[0030] This application discloses a magnetic levitation motor testing device.

[0031] Reference Figure 1 , Figure 2 and Figure 3 A magnetic levitation motor testing device includes a base plate 1, a workbench 2 at the top center of the base plate 1, a lower testing platform 3 on the top of the workbench 2, a hinge 4 on one side of the outer wall of the lower testing platform 3, an upper testing platform 5 connected to the lower testing platform 3 via the hinge 4, a slot 6 inside the lower testing platform 3, four sets of slots 6 evenly arranged along the horizontal direction of the lower testing platform 3, a spring plate assembly 7 inside the slot 6, a testing probe 8 on one side of the spring plate assembly 7, a connecting assembly 9 on one side of the testing probe 8, a drive mechanism 10 inside the upper testing platform 5, an arc-shaped pressure plate 11 on one side of the drive mechanism 10, a rotating shaft 12 on one side of the hinge 4, a connecting rod 13 on one side of the rotating shaft 12, and an electrical box 14 on one side of the connecting rod 13.

[0032] Specifically, the symmetrical structure of the arc-shaped lower detection platform 3 and the upper detection platform 5, made of aluminum alloy, forms an enclosed detection space. The rotating opening and closing mechanism, connected by stainless steel hinges 4, enables the rapid clamping of the motor to be tested. The nylon spring plate assembly 7 embedded in the four sets of slots 6 provides adaptive pressure through evenly distributed telescopic springs 702, so that the tungsten copper alloy contacts of the detection probe 8 maintain a constant contact force with the motor surface. The drive mechanism 10 uses 304 stainless steel bevel gears 20 sets of transmission in the dustproof box 18. The rotating handle 24 drives three sets of driven wheels 21 to synchronously drive the telescopic rod 22, so that the silicone rubber pad 27 of the arc-shaped pressure plate 11 applies a uniform clamping force to the motor. The ABS engineering plastic shell of the electrical box 14 is equipped with copper slide rails 30 and silver alloy sliding contacts 31. The carbon steel rotating shaft 12 of the connecting rod 13 enables the automatic switching of the circuit when the upper detection platform rotates. This design replaces manual wiring with mechanical linkage, the elastic deformation of the spring plate assembly 7 compensates for the motor size tolerance, the bevel gear 20 transmission system ensures uniform clamping force distribution, and the whole constitutes a closed detection environment to shield external electromagnetic interference.

[0033] Reference Figure 1 and Figure 2 The base plate 1 is equipped with movable rollers 15 at each of the four corners. The lower inspection platform 3 and the upper inspection platform 5 have arc-shaped cross sections, and the lower inspection platform 3 and the upper inspection platform 5 have the same cross section. The upper inspection platform 5 can rotate along the vertical direction of the lower inspection platform 3 through the hinge 4. A fixing buckle 16 is provided on one side of the outer wall of the upper inspection platform 5.

[0034] Specifically, polyurethane moving rollers 15 are fixed to the four corners of the base plate 1 with bolts. Their quiet and wear-resistant characteristics facilitate flexible movement of the device between multiple workstations. The lower test platform 3 and the upper test platform 5 are made of aluminum alloy integral casting to form a matching arc-shaped cross section. The radius of its arc is consistent with the curvature of the standard magnetic levitation motor shell. The upper test platform 5 can rotate and open and close in the vertical direction of 0-90° through stainless steel hinges 4. The arc-shaped cross section of the lower test platform 3 and the upper test platform 5 increases the force-bearing area when the motor is fixed through the covering contact, avoiding local stress concentration. At the same time, the design of the rotation axis of the hinge 4 coinciding with the motor axis ensures that the test probe 8 is always aligned with the motor test point during the opening and closing process, ensuring positioning accuracy.

[0035] Reference Figure 7 and Figure 8 A guide plate 17 is provided on the top of the slot 6. There are two sets of guide plates 17, and the two sets of guide plates 17 are symmetrically arranged along the horizontal direction of the slot 6, so that the spring plate assembly 7 can move up and down along the vertical direction of the guide plate 17.

[0036] Specifically, the two sets of guide plates 17 at the top of the slot 6 are made of hard aluminum alloy and are symmetrically arranged on both sides of the slot 6 in the horizontal direction to form a vertical slide rail structure. The two sides of the receiving plate 701 of the spring plate assembly 7 are precisely fitted with the inner wall of the guide plate 17. The elastic support is provided by the telescopic springs 702 made of high carbon steel, so that the detection probe 8 can stably move along the vertical direction defined by the guide plate 17. Through the rigid constraint of the guide plate 17 and the elastic deformation of the spring plate assembly 7, it is ensured that the detection probe 8 maintains a vertical movement trajectory when pressed down to avoid lateral deviation. At the same time, the pressure is evenly distributed by multiple sets of circumferentially arranged telescopic springs 702, so that the detection probe 8 can adapt to the curved shape of the motor housing. When the upper detection table 5 is closed, the arc-shaped pressure plate 11 presses down to make the spring plate assembly 7 move down along the guide plate 17. At this time, the probe assembly 801 automatically fits the motor surface under the action of the spring force. After the detection is completed, the spring plate assembly 7 is reset along the guide plate 17 under the action of the rebound force of the telescopic springs 702, realizing the non-destructive separation of the detection probe 8 from the motor.

[0037] Reference Figure 1 , Figure 7 and Figure 8 The spring plate assembly 7 includes a receiving plate 701 and a telescopic spring 702. The receiving plate 701 is arc-shaped, and a telescopic spring 702 is provided at the bottom of the receiving plate 701. Several sets of telescopic springs 702 are provided, and each set of telescopic springs 702 is evenly arranged along the circumference of the receiving plate 701.

[0038] Specifically, the receiving plate 701 of the spring plate assembly 7 is made of 65Mn spring steel. Its arc-shaped structure matches the curvature of the inner wall of the lower detection platform 3. After being processed by hot forming, it is quenched and tempered to maintain an elastic deformation allowance of 0.8 to 1.2 mm. The telescopic spring 702 is a variable pitch helical spring made of 304 stainless steel. Each group of 6 springs is distributed at a 30° equiangular angle along the circumference of the receiving plate 701. The top end is fixed to the annular groove at the bottom of the receiving plate 701 by laser welding, and the bottom end is embedded in the aluminum alloy positioning post at the bottom of the slot 6, forming a three-point elastic support system. When the detection probe 8 contacts the motor surface, the compression of the telescopic spring 702 is automatically adjusted according to the curvature of the motor housing, so that the probe assembly 801 always maintains a balanced contact pressure. This design, through the synergistic effect of the spring plate assembly 7, ensures the dynamic contact stability between the probe and the motor surface during the detection process, and avoids damage to the motor coating due to excessive pressure.

[0039] Reference Figure 4 and Figure 8The detection probe 8 includes a probe assembly 801, a probe base 802, and a connecting line 803. The probe assembly 801 is provided with five sets, and the five sets of probe assemblies 801 are evenly arranged along the gap between the spring plate assembly 7 and the lower detection stage 3. The probe base 802 is provided on one side of the probe assembly 801, and the connecting line 803 is provided on one side of the probe base 802.

[0040] Specifically, the probe assembly 801 adopts a composite structure of high-permeability silicon steel sheet and Hall sensor. Five sets of probes are evenly arranged along the gap between the spring plate assembly 7 and the lower detection platform 3, forming a ring detection array. When the motor is placed on the lower detection platform 3, the telescopic spring 702 of the spring plate assembly 7 pushes the receiving plate 701 to make the probe assembly 801 fit tightly against the motor housing. The silicon steel sheet focuses the magnetic field signal, and the Hall sensor converts the magnetic flux into an electrical signal, which is transmitted to the connecting line 803 through the copper conductive sheet of the probe base 802. The probe base 802 is made of engineering plastic injection molding and has an internal anti-interference shielding layer. The connecting line 803 is a tin-plated copper core twisted pair cable, with the end connected to... The mainboard 902 of the connecting component 9 enables synchronous acquisition of electrical and magnetic performance signals. This design, through a ring array layout and elastic contact structure, ensures that the probe can still fully cover the motor detection surface even when it is not fixed. The principle is to use the radial adaptive force of the spring plate component 7 to compensate for the motor size tolerance, so that the silicon steel sheet and the motor housing maintain a constant contact pressure, thereby eliminating signal fluctuations caused by traditional point contact measurement and improving the uniformity of magnetic field detection. At the same time, the spatial distribution of the five probe components 801 can perform the following tests for different positions of the motor: winding resistance measurement, insulation performance test, inductance measurement, magnetic field strength measurement, and hysteresis loop measurement.

[0041] Reference Figure 4 The connecting component 9 includes a housing 901, a main board 902, a control switch 903, an indicator light group 904, and a wiring interface 905. The main board 902 is located inside the housing 901. The control switch 903 is located on one side of the outer wall of the housing 901, and one side of the control switch 903 is connected to the main board 902. The other side of the control switch 903 is equipped with five groups of indicator lights 904, which are evenly arranged along the horizontal direction of the housing 901. Each probe assembly 801 and indicator light group 904 are connected via a connecting cable 803. A wiring interface 905 is located on one side of the indicator light group 904.

[0042] Specifically, the outer shell 901 of the connecting component 9 is made of ABS engineering plastic injection molding to balance insulation and structural strength. Its internal main board 902 is a multi-layer PCB board integrating signal conditioning circuit, AD conversion module and microprocessor. The control switch 903 is a waterproof rocker switch and is hard-connected to the GPIO pin of the main board 902 through a metal spring. The indicator light group 904 consists of 5 groups of surface-mount LEDs and matching current-limiting resistors. The anode of each LED is connected to the Hall sensor output terminal of the corresponding probe component 801 through the shielded twisted pair of the connecting wire 803, and the cathode is uniformly connected to the ground layer of the main board 902. The connection interface 905 is a DB9 type metal connector, whose pins are soldered to the serial communication bus of the main board 902 to realize the external transmission of detection data. When the detection probe 8 makes contact with the motor, the indicator light group 904 can change from red to green, clearly indicating to the operator that the connection is complete.

[0043] Reference Figure 3 and Figure 6 The drive mechanism 10 includes a dust box 18, a drive rod 19, a bevel gear 20, and a driven wheel 21. The drive rod 19 is located at the center of the dust box 18. The bevel gear 20 is located on the outer wall of the drive rod 19. There are three sets of bevel gears 20, and the three sets of bevel gears 20 are evenly arranged along the horizontal direction of the drive rod 19. The driven wheel 21 is connected to one side of the bevel gear 20.

[0044] Specifically, the dust box 18 is made of aluminum alloy, and a stainless steel drive rod 19 is fixed to its center by a bearing. The drive rod 19 has trapezoidal threads on its surface to enhance the meshing strength with the bevel gear 20. Three sets of bevel gears 20 are made of carburized steel and are equidistantly distributed along the axial direction of the drive rod 19. The helical tooth surface of each set of bevel gears 20 forms a 45° meshing angle with the helical tooth groove of the driven wheel 21. The rotational motion is converted into vertical displacement through the torque transmission principle. The driven wheel 21 is a copper-based powder metallurgy component. The telescopic rod 22 connected to its bottom is composed of a chromium vanadium steel spring and a 304 stainless steel sleeve to achieve the buffered downward pressure of the arc-shaped pressure plate 11. The auxiliary gear 25 set on the side wall of the dust box 18 is injection molded from nylon 66 material and forms a noise-reducing meshing pair with the surface-quenched alloy steel rack 26. The bottom of the rack 26 is fixed to the reinforcing rib of the arc-shaped pressure plate 11 by bolts. This design achieves multi-point synchronous drive by splitting the power of the bevel gear set, maintains stable pressure by utilizing the self-locking characteristics of the helical gear meshing, and compensates for the tolerance of the motor housing by the elastic deformation of the telescopic rod 22, so that the arc-shaped pressure plate 11 can apply pressure evenly without damaging the surface of the motor under test.

[0045] Reference Figure 6 A telescopic rod 22 is provided below the driven wheel 21. The driven wheel 21 is connected to the top of the arc-shaped pressure plate 11 through the telescopic rod 22, so that the arc-shaped pressure plate 11 can move up and down along the vertical direction of the upper detection table 5. A rubber pad 27 is provided on one side of the arc-shaped pressure plate 11.

[0046] Specifically, the motor clamping and detection are automated through the linkage design of the drive mechanism 10 and the arc-shaped pressure plate 11. The dust box 18 uses an aluminum alloy shell to seal the internal bevel gear 20 and driven wheel 21. The drive rod 19 is made of stainless steel. Its horizontal rotation drives the driven wheel 21 to rotate synchronously through three sets of bevel gears 20, which in turn drives the telescopic rod 22 made of nickel-chromium alloy to move vertically. The arc-shaped pressure plate 11 is an arc-shaped aluminum alloy plate with a silicone rubber pad 27 bonded to its inner side to adapt to the curvature of the motor shell. When the telescopic rod 22 is pressed down, the arc-shaped pressure plate 11 moves vertically along the upper detection platform 5. The elastic deformation of the rubber pad 27 adaptively presses the motor rotors of different diameters. At the same time, the telescopic spring 702 of the spring plate assembly 7 is compressed under pressure, so that the probe assembly 801 of the detection probe 8 forms a stable contact with the surface of the motor stator.

[0047] Reference Figure 2 and Figure 6 A sleeve 23 is provided on one side of the drive rod 19, and a rotating handle 24 is provided on one side of the sleeve 23. The rotating handle 24 can be moved horizontally along the drive rod 19 through the sleeve 23. An auxiliary gear 25 is provided on the outer wall of the dust box 18. Several sets of auxiliary gears 25 are provided, and each set of auxiliary gears 25 is evenly arranged along the horizontal direction of the dust box 18. A rack 26 is provided on one side of the auxiliary gear 25. The bottom of the rack 26 is connected to the top of the arc-shaped pressure plate 11, and the rack 26 can be moved up and down along the vertical direction of the upper detection platform 5.

[0048] Specifically, the drive rod 19 is made of 45# steel and its surface is hardened to enhance the meshing strength with the bevel gear 20. Three sets of bevel gears are evenly distributed horizontally along the drive rod to form a force-sharing structure, ensuring that the torque is evenly transmitted to the driven wheel 21. The driven wheel 21 is a copper-based powder metallurgy part, and the telescopic rod 22 connected below it is made of 304 stainless steel and is fixed to the aluminum alloy mounting seat on the top of the arc-shaped pressure plate 11 by threads. When the rotating handle 24 drives the drive rod 19 to rotate, the bevel gear 20 drives the driven wheel 21 to rotate, which in turn pushes the arc-shaped pressure plate 11 to move vertically through the telescopic rod 22. This mechanical transmission design allows for precise control of the pressing force. The auxiliary gear 25 is injection molded from nylon 66 material and is embedded in the galvanized steel plate on the outer wall of the dustproof box 18. Multiple sets of auxiliary gears 25 form a two-stage force-increasing mechanism through the synchronous rack 26. The bottom of the rack 26 is bonded to the polyurethane buffer layer on the top of the arc-shaped pressure plate 11, which absorbs vibration while ensuring transmission accuracy. This structure amplifies the operating torque through the multi-stage transmission ratio of the gear set, allowing the operator to generate sufficient downward pressure by simply turning the handle 24. Meanwhile, the rubber pad 27, made of nitrile rubber, can protect the motor housing and ensure the stability of the probe contact.

[0049] Reference Figure 5The electrical box 14 is equipped with a power supply assembly 28. A power supply socket 29 is provided on one side of the power supply assembly 28, and a slide rail 30 is provided on the other side of the power supply assembly 28. There are two sets of slide rails 30, and the two sets of slide rails 30 are evenly arranged along the horizontal direction of the electrical box 14. A sliding contact 31 is provided on the outer wall of the slide rail 30. One side of the sliding contact 31 is connected to the connecting rod 13, so that when the upper detection table 5 rotates, the sliding contact 31 is driven to move up and down along the vertical direction of the slide rail 30 through the connecting rod 13.

[0050] Specifically, based on the mechanical transmission of the connecting rod 13 driven by the rotation of the upper testing platform 5, the sliding contact 31 is vertically displaced along two sets of parallel slide rails 30, thereby dynamically connecting or disconnecting the circuit connection of the power supply component 28. The slide rails 30 are made of conductive copper alloy material and are silver-plated to reduce contact resistance. The sliding contact 31 is a carbon brush structure. In actual use, the spring preload can maintain stable contact with the slide rails 30, ensuring the reliability of power supply switching during the opening and closing of the upper testing platform 5. The power supply component 28 includes a lithium battery pack and a voltage regulator circuit module. The power supply socket 29 is a waterproof aviation plug for connecting an external backup power supply. By replacing the traditional manual plugging and unplugging operation with a purely mechanical structure, when the upper testing platform 5 is opened by rotating the hinge 4, the connecting rod 13 pushes the sliding contact 31 down to cut off the power supply. When closed, the power supply is automatically restored, which avoids the risk of live operation and simplifies the testing process.

[0051] The implementation principle of this application embodiment is as follows: At the start of the test, the operator places the magnetic levitation motor to be tested in the arc-shaped groove of the lower test platform 3 and adjusts the position of the device by moving the roller 15; then, the upper test platform 5 is moved to rotate and close vertically via the hinge 4, at which time the fixing buckle 16 locks the upper and lower test platforms to form a test cavity. When the upper test platform 5 is closed, its internal drive mechanism 10 starts to operate: the rotating handle 24 drives the drive rod 19 to rotate through the sleeve 23, the three sets of bevel gears 20 mesh with the driven wheel 21 to push the telescopic rod 22 to push the arc-shaped pressure plate 11 vertically downward, the rubber pad 27 contacts the motor housing to apply uniform pressure, and at the same time, the spring plate assembly 7 in the four sets of slots 6 in the lower test platform 3 is guided by the guide plate 17 and adaptively lifts the receiving plate 701 through the telescopic spring 702, so that the five sets of probe assemblies 801 are tightly attached to the motor test point. During testing, the connecting cable 803 transmits the probe signal to the connecting component 9. The main board 902 processes the data and provides status feedback through the corresponding indicator light group 904. The control switch 903 can switch the test mode. When the upper testing platform 5 rotates, the rotating shaft 12 drives the connecting rod 13 to move the sliding contact 31 along the slide rail 30 inside the electrical box 14, automatically connecting the power component 28 to power the system. After the test is completed, rotating the handle 24 in the opposite direction retracts the arc-shaped pressure plate 11, releases the fixing buckle 16, flips up the upper testing platform 5, and removes the motor, thus completing the testing process. The entire process does not require manual probe connection or repeated adjustment of the measurement position.

[0052] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A magnetic levitation motor testing device, comprising a base plate (1), characterized in that, A workbench (2) is provided at the top center of the base plate (1). A lower inspection platform (3) is provided on the top of the workbench (2). A hinge (4) is provided on one side of the outer wall of the lower inspection platform (3). The lower inspection platform (3) is connected to an upper inspection platform (5) through the hinge (4). A slot (6) is provided inside the lower inspection platform (3). There are four sets of slots (6), and the four sets of slots (6) are evenly arranged along the horizontal direction of the lower inspection platform (3). The interior of the slot (6) A spring plate assembly (7) is provided, a detection probe (8) is provided on one side of the spring plate assembly (7), a connecting assembly (9) is provided on one side of the detection probe (8), a drive mechanism (10) is provided inside the upper detection platform (5), an arc-shaped pressure plate (11) is provided on one side of the drive mechanism (10), a rotating shaft (12) is provided on one side of the hinge (4), a connecting rod (13) is provided on one side of the rotating shaft (12), and an electrical box (14) is provided on one side of the connecting rod (13).

2. The magnetic levitation motor testing device according to claim 1, characterized in that, The base plate (1) is provided with movable rollers (15) at the four corners. The cross-sections of the lower inspection platform (3) and the upper inspection platform (5) are arc-shaped and the cross-sections of the lower inspection platform (3) and the upper inspection platform (5) are the same. The upper inspection platform (5) can rotate along the vertical direction of the lower inspection platform (3) through the hinge (4). A fixing buckle (16) is provided on one side of the outer wall of the upper inspection platform (5).

3. The magnetic levitation motor testing device according to claim 1, characterized in that, The top of the slot (6) is provided with a guide plate (17), and there are two sets of guide plates (17). The two sets of guide plates (17) are symmetrically arranged along the horizontal direction of the slot (6), so that the spring plate assembly (7) can move up and down along the vertical direction of the guide plate (17).

4. The magnetic levitation motor detection device according to claim 1, characterized in that, The spring plate assembly (7) includes a receiving plate (701) and a telescopic spring (702). The receiving plate (701) is arc-shaped, and a telescopic spring (702) is provided at the bottom of the receiving plate (701). Several sets of the telescopic spring (702) are provided, and each set of the telescopic spring (702) is evenly arranged along the circumference of the receiving plate (701).

5. The magnetic levitation motor testing device according to claim 1, characterized in that, The detection probe (8) includes a probe assembly (801), a probe base (802), and a connecting line (803). The probe assembly (801) is provided in five groups, and the five groups of probe assemblies (801) are evenly arranged along the gap between the spring plate assembly (7) and the lower detection stage (3). The probe base (802) is provided on one side of the probe assembly (801), and the connecting line (803) is provided on one side of the probe base (802).

6. The magnetic levitation motor testing device according to claim 5, characterized in that, The connection component (9) includes a housing (901), a motherboard (902), a control switch (903), an indicator light group (904), and a connection interface (905). The motherboard (902) is disposed inside the housing (901). The control switch (903) is disposed on one side of the outer wall of the housing (901). One side of the control switch (903) is connected to the motherboard (902). The other side of the control switch (903) is disposed with an indicator light group (904). There are five groups of indicator light groups (904), and the five groups of indicator light groups (904) are evenly arranged along the horizontal direction of the housing (901). Each group of probe components (801) and indicator light groups (904) are connected through the connection line (803). A connection interface (905) is disposed on one side of the indicator light group (904).

7. The magnetic levitation motor detection device according to claim 1, characterized in that, The drive mechanism (10) includes a dust box (18), a drive rod (19), a bevel gear (20), and a driven wheel (21). The drive rod (19) is located at the center of the dust box (18). The bevel gear (20) is located on the outer wall of the drive rod (19). There are three sets of bevel gears (20), and the three sets of bevel gears (20) are evenly arranged along the horizontal direction of the drive rod (19). The driven wheel (21) is connected to one side of the bevel gear (20).

8. The magnetic levitation motor testing device according to claim 7, characterized in that, A telescopic rod (22) is provided below the driven wheel (21). The driven wheel (21) is connected to the top of the arc-shaped pressure plate (11) through the telescopic rod (22), so that the arc-shaped pressure plate (11) can move up and down along the vertical direction of the upper detection platform (5). A rubber pad (27) is provided on one side of the arc-shaped pressure plate (11).

9. The magnetic levitation motor testing device according to claim 7, characterized in that, A sleeve (23) is provided on one side of the drive rod (19), and a rotating handle (24) is provided on one side of the sleeve (23). The rotating handle (24) can be displaced along the horizontal direction of the drive rod (19) through the sleeve (23). An auxiliary gear (25) is provided on the outer wall of the dust box (18). Several sets of auxiliary gears (25) are provided, and each set of auxiliary gears (25) is evenly arranged along the horizontal direction of the dust box (18). A rack (26) is provided on one side of the auxiliary gear (25). The bottom of the rack (26) is connected to the top of the arc-shaped pressure plate (11), and the rack (26) can be displaced up and down along the vertical direction of the upper detection platform (5).

10. The magnetic levitation motor detection device according to claim 1, characterized in that, The electrical box (14) is equipped with a power supply assembly (28). A power supply socket (29) is provided on one side of the power supply assembly (28), and a slide rail (30) is provided on the other side of the power supply assembly (28). There are two sets of slide rails (30), and the two sets of slide rails (30) are evenly arranged along the horizontal direction of the electrical box (14). A sliding contact (31) is provided on the outer wall of the slide rail (30). One side of the sliding contact (31) is connected to the connecting rod (13), so that when the upper detection platform (5) rotates, the sliding contact (31) is driven to move up and down along the vertical direction of the slide rail (30) through the connecting rod (13).

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