Rotor surface magnetic field intensity change monitoring device and monitoring system

Abstract

The invention relates to a rotor surface magnetic field intensity change monitoring device and monitoring system, belongs to the field of rotor magnetic field monitoring, and aims to solve the problem that an existing rotor surface magnetic field intensity monitoring device cannot perform automatic and efficient omnibearing magnetic field monitoring on rotors of different specifications and sizes. The mounting frame is rotationally connected with a reinforcing plate through a bearing, a positioning driving assembly is installed on the reinforcing plate, and an all-dimensional monitoring assembly is installed on the top plate. According to the application, through downward movement of the extrusion plate, the rotor can be extruded and fixed, and the rotor can synchronously rotate along with the rotor in the rotation monitoring process of the rotor, so that each second extension rod can be pulled to move upwards at a constant speed, and each Hall sensor can be driven to move synchronously; and at the moment, all-directional monitoring work of the magnetic field intensity on the surface of the rotor is automatically and efficiently realized under the action of uniform-speed motion of each Hall sensor from bottom to top and uniform-speed rotation of the rotor.

Description

Technical Field

[0001] The present invention relates to a device and a monitoring system for monitoring the change of magnetic field intensity on the surface of a rotor, and belongs to the field of rotor magnetic field monitoring. Background Art

[0002] In many current industrial fields and high-tech application scenarios, rotating electrical equipment such as motors and generators plays a crucial role. As a key component of these devices, the performance of the rotor directly affects the operating efficiency, stability, and reliability of the entire system. The magnetic field condition on the surface of the rotor is one of the core characterization elements of the rotor performance. Therefore, after the rotor is produced and processed, it is necessary to monitor the intensity of the magnetic field on the surface of the rotor.

[0003] However, there are some problems in the actual working process of the existing devices for monitoring the magnetic field intensity on the surface of the rotor. For example, a new energy motor rotor surface magnetic detection device with the publication number of CN117233672B can position and rotate the rotor during the working process, but it cannot adjust the monitoring position and monitoring range according to the size of the rotor, and at the same time, it cannot perform automatic and efficient omnidirectional magnetic field monitoring on rotors of different sizes, with poor practicability and applicability. And during the actual working process, after the monitoring of the rotor is completed, it cannot automatically clean the working station. Therefore, the dust and impurities remaining on the monitoring station are very likely to affect the monitoring stability and accuracy of the next rotor. Therefore, we make improvements on this and propose a device and a monitoring system for monitoring the change of magnetic field intensity on the surface of the rotor. Summary of the Invention

[0004] (1) The technical problem to be solved by the present invention is that the existing devices for monitoring the magnetic field intensity on the surface of the rotor cannot adjust the monitoring position and monitoring range according to the size of the rotor, and at the same time, cannot perform automatic and efficient omnidirectional magnetic field monitoring on rotors of different sizes, and cannot automatically clean the working station.

[0005] (2) Technical Solution To achieve the above-mentioned invention object, the present invention provides a device for monitoring the change of magnetic field intensity on the surface of a rotor, including a mounting frame. The mounting frame is rotatably connected with a reinforcing plate through a bearing. A positioning driving assembly is installed on the reinforcing plate. A hydraulic rod is fixedly installed at the side end of the mounting frame. The top end of the hydraulic rod is fixedly connected with a top plate. An all-round monitoring assembly is installed on the top plate. A second protective cylinder is welded and fixed on the bottom end surface of the top plate. An automatic cleaning assembly is installed on the top plate. An electromagnetic field tester is fixedly installed on the top end surface of the top plate. The all-round monitoring assembly includes a first protective cylinder and a first connecting plate. A first sliding groove is penetrated and opened on the first connecting plate. A second connecting plate is fixedly connected in the first protective cylinder. A second sliding groove is penetrated and opened on the second connecting plate. A sliding plate is limited and slidably connected in the second sliding groove. A storage cylinder is welded and fixed on the sliding plate. A first extension rod is limited and slidably connected in the storage cylinder. A second extension rod is limited and slidably connected in the first extension rod. A Hall sensor is installed at the bottom of the second extension rod. A pressure sensor is fixedly installed at the top end inside the storage cylinder. A guide wheel is installed at the top of the storage cylinder. A traction rope is limited and slidably connected on the guide wheel. One end of the traction rope is fixedly connected to the top end of the second extension rod, and the other end of the traction rope is wound around a coil.

[0006] Among them, four groups of positioning driving assemblies are provided. The four groups of positioning driving assemblies are equally angularly distributed on the reinforcing plate. The positioning driving assembly includes a support rod. The support rod is welded and fixed on the top end surface of the reinforcing plate. The top end of the support rod is welded and fixed with a fixed frame. A first servo motor is welded and fixed at the center of the bottom end of the fixed frame. The output end of the first servo motor is connected with a driving shaft. A limiting frame and a first pushing block are welded and fixed on the driving shaft. The first pushing block is in the shape of a right triangle. The first pushing blocks are equally angularly distributed on the driving shaft.

[0007] Among them, a sleeve is rotatably connected to the inner bottom end of the fixed frame. A first spring is welded and fixed in the sleeve. A second pushing block is welded and fixed on the first spring. The second pushing block is limited and slidably connected in the sleeve. The first springs are equally angularly distributed in the sleeve. The first springs correspond to the second pushing blocks one by one. The end face of the second pushing block is inclined.

[0008] Among them, a fixed frame is welded and fixed on the sleeve. A rotating plate is welded and fixed at the top end of the fixed frame. A first through groove is penetrated and opened at the center of the rotating plate. A second spring is welded and fixed on the rotating plate. A slider is limited and slidably connected on the rotating plate. A clamping plate is welded and fixed at the top end of the slider. A rubber pad is fixedly connected to the clamping plate. The cross section of the clamping plate is in the shape of a right triangle. The second springs are equally angularly distributed on the rotating plate. The second springs correspond to the clamping plates one by one through the sliders.

[0009] Among them, a connecting plate is fitted inside the fixed frame. A second through groove is penetratingly formed in the central portion of the connecting plate. A first ball is rotatably connected inside the second through groove. The inner wall inside the second through groove is inclined. A threaded rod is rotatably connected to the top of the connecting plate. A support plate is threadedly connected to the threaded rod. A second ball is rotatably connected to the top of the support plate. The threaded rods are distributed at equal angles on the top of the connecting plate. The threaded rods and the support plates are in one-to-one correspondence. The cross section of the support plate is in an "L" shape.

[0010] Among them, the towing rope is slidably connected through the storage cylinder. The first connecting plate is rotatably connected inside the first protective cylinder through a bearing. Four first sliding grooves and four second sliding grooves are provided. The four first sliding grooves are distributed at equal angles on the first connecting plate. The four second sliding grooves are distributed at equal angles on the second connecting plate. The first sliding groove is inclined. The first protective cylinder is fixedly connected to the top plate. A card slot is formed in the top side end of the first protective cylinder. A cover plate is sleeved on the top of the first protective cylinder. A third spring is fixedly connected to the side end of the cover plate. A clamping rod is welded and fixed on the third spring. Positioning grooves are formed at equal angles at the inner top end of the cover plate. The first protective cylinder and the cover plate are both made of magnetic shielding materials.

[0011] Among them, a positioning rod is snap-fitted inside the positioning groove. The bottom end of the positioning rod is welded and fixed to the first connecting plate. Fourth springs are fixedly connected to the top and bottom of the first extension rod. A driven shaft is welded and fixed to the coil. The bottom end of the driven shaft is welded and fixed to a pressing plate. A rubber plate is fixedly connected to the bottom end of the pressing plate. The driven shaft is rotatably connected to the second connecting plate.

[0012] Among them, the automatic cleaning assembly includes a ventilation cylinder. The ventilation cylinder is welded and fixed to the top plate. Magnetic frames are fixedly connected to both sides of the ventilation cylinder. A collection box is magnetically adsorbed inside the magnetic frames. Collection grooves are formed in the top side end of the collection box and the top side end of the ventilation cylinder. A filter screen plate is fixedly connected to the top of the ventilation cylinder. A first adjusting rod is rotatably connected to the bottom end of the filter screen plate. A fifth spring is welded and fixed inside the first adjusting rod. A second adjusting rod is welded and fixed to the bottom end of the fifth spring. A first brush is fixedly connected to the second adjusting rod. A mounting plate is welded and fixed to the first adjusting rod. A second brush is fixedly connected to the bottom end face of the mounting plate. An exhaust fan blade and a scraping rod are welded and fixed to the first adjusting rod. The scraping rod is in contact with the bottom end face of the filter screen plate. The bottom end face of the filter screen plate is flush with the top end face of the collection groove.

[0013] Wherein, a second servo motor is fixedly welded to the bottom end surface of the mounting frame. A turntable and a limiting plate are fixedly welded to the output shaft of the second servo motor. A lever is fixedly welded to the turntable. A rotating shaft is fixedly welded to the center of the bottom end of the reinforcing plate. A guiding plate is fixedly welded to the rotating shaft. Four guiding grooves are equiangularly formed in the guiding plate.

[0014] A rotor surface magnetic field intensity change monitoring system includes a sensing monitoring module and a pressure sensing module. The output ends of the sensing monitoring module and the pressure sensing module are both connected to the input end of a signal conditioning module. The output end of the signal conditioning module is respectively connected to the input end of a data processing and analysis module and the input end of a central control module. The output end of the central control module is connected to the input end of a driving module. The output end of the data processing and analysis module is connected to the input end of a fault diagnosis module. The output end of the fault diagnosis module is connected to the input end of a display and alarm module. The output end of the display and alarm module is connected to the input end of a data storage module.

[0015] Beneficial effects For the rotor surface magnetic field intensity change monitoring device and monitoring system provided by the present invention, the beneficial effects are as follows: 1. By rotating each threaded rod, the position of the support plate can be conveniently adjusted, so that the rotor can be stably lifted. And driven by the hydraulic rod, the omnidirectional monitoring component can be automatically driven to move downward by the top plate, and combined with the pressing plate, the rotor can be stably pressed downward. At the same time, under the downward movement of the rotor, the support plate and the connecting plate can push each clamping plate to move synchronously towards the middle, so as to automatically clamp and fix the bottom rotating shaft of the rotor and center it, realizing the automatic clamping and fixing and centering of the whole rotor, ensuring the stability and accuracy of the subsequent rotor surface magnetic field intensity monitoring work, increasing the practicability and applicability of the monitoring device, and improving the working efficiency of the monitoring device at the same time.

[0016] 2. The first servo motor can drive the clamped and fixed rotor to rotate at a constant speed. And when the pressing plate moves downward, it can not only press and fix the rotor, but also rotate synchronously with the rotor during the rotation monitoring of the rotor. At this time, under the synchronous rotation of the pressing plate, the coil can evenly wind up the traction rope, so as to pull each second extension rod to move upward evenly, and then drive each Hall sensor to move synchronously. At this time, under the uniform upward movement of each Hall sensor from bottom to top and the uniform rotation of the rotor itself, the omnidirectional monitoring of the rotor surface magnetic field intensity is automatically and efficiently realized, and the accuracy of the monitoring device is improved at the same time.

[0017] 3. Through the cooperation of the set positioning rods and each positioning groove, the rotation and positioning fixation of the first connection plate can be conveniently completed. Under the combined action of each first sliding groove and the corresponding second sliding groove, the second extension rod can drive each Hall sensor to move towards the middle or the side simultaneously, thereby conveniently adjusting the monitoring positions of each Hall sensor, and enabling convenient and stable surface magnetic field intensity monitoring of rotors of different specifications and sizes, further improving the practicability and applicability of the monitoring device.

[0018] 4. Through the downward movement of the set top plate, the automatic cleaning component can be driven to move down to the leftmost positioning drive component. At this time, while the rightmost positioning drive component is performing surface magnetic field intensity monitoring on the rotor, the leftmost positioning drive component can also be driven by the first servo motor to achieve automatic cleaning of the fixed frame, and at the same time, the dust and impurities generated during cleaning can be automatically collected, preventing dust and impurities from remaining in the fixed frame during the monitoring of the rotor and affecting the stability and accuracy of the monitoring work of the next rotor, increasing the diversity of the use of the monitoring device.

[0019] 5. Through the drive of the set second servo motor, the reinforcing plate on the rotating shaft can be driven to rotate intermittently through the dial rod and each guiding groove on the guiding plate, and then each group of positioning drive components can be driven to rotate intermittently. At this time, under the intermittent movement of each group of positioning drive components, the feeding, monitoring, discharging of the motor rotor and the automatic cleaning of the positioning drive components can be conveniently and efficiently completed, realizing the convenient and efficient monitoring work of the motor rotor, and further improving the working efficiency of the monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure between the mounting frame and the reinforcing plate of the present invention; Figure 3 It is a schematic diagram of the connection structure between the slider and the clamping plate of the present invention; Figure 4 For the present invention Figure 2 The enlarged schematic diagram at A in; Figure 5 For the present invention Figure 2 ]The enlarged schematic diagram at B in; Figure 6 Schematic diagram of the connection structure between the limit rod and the connecting plate of the present invention; Figure 7 Schematic diagram of the connection structure between the clamping plate and the rubber pad of the present invention; Figure 8 Schematic diagram of the main cross-sectional structure of the sleeve of the present invention; Figure 9 Schematic diagram of the top cross-sectional structure of the sleeve of the present invention; Figure 10 Schematic diagram of the connection structure between the extrusion plate and the rubber plate of the present invention; Figure 11 Of the present invention Figure 10 Schematic diagram of the enlarged structure at C in; Figure 12 Schematic diagram of the connection structure between the traction rope and the coil of the present invention; Figure 13 Schematic diagram of the connection structure between the second chute and the sliding plate of the present invention; Figure 14 Schematic diagram of the connection structure between the second extension rod and the Hall sensor of the present invention; Figure 15 Schematic diagram of the connection structure between the cover plate and the positioning groove of the present invention; Figure 16 Schematic diagram of the connection structure between the magnetic frame and the collection box of the present invention; Figure 17 Schematic diagram of the connection structure between the first adjusting rod and the mounting plate of the present invention; Figure 18 Schematic diagram of the connection structure between the fifth spring and the second adjusting rod of the present invention; Figure 19 Schematic diagram of the monitoring system of the present invention.

[0022] In the figure: 1, mounting frame; 2, reinforcing plate; 3, positioning drive assembly; 301, support rod; 302, fixed frame; 303, first servo motor; 304, drive shaft; 305, limit frame; 306, first push block; 307, sleeve; 308, first spring; 309, second push block; 310, fixed bracket; 311, rotating plate; 312, first through groove; 313, second spring; 314, slider; 315, clamping plate; 316, rubber pad; 317, fixing plate; 318, limit rod; 319, connecting plate; 320, second through groove; 321, first ball; 322, threaded rod; 323, support plate; 324, second ball; 4, hydraulic rod; 5, top plate; 6, omnidirectional monitoring assembly; 601, first protective cylinder; 602, card slot; 603, cover plate; 604, third spring; 605, clamping rod; 606, positioning groove; 607, positioning rod; 608, first connecting plate; 609, first chute; 610, second connecting plate; 611, second chute; 612, sliding plate; 613, storage cylinder; 614, first extension rod; 615, second extension rod; 616, Hall sensor; 617, fourth spring; 618, pressure sensor; 619, guide wheel; 620, towing rope; 621, coil; 622, driven shaft; 623, extrusion plate; 624, rubber plate; 7, second protective cylinder; 8, automatic cleaning assembly; 801, ventilation cylinder; 802, magnetic frame; 803, collection box; 804, collection groove; 805, filter screen plate; 806, first adjusting rod; 807, fifth spring; 808, second adjusting rod; 809, first brush; 810, mounting plate; 811, second brush; 812, exhaust fan blade; 813, scraping rod; 9, electromagnetic field tester; 10, second servo motor; 11, turntable; 12, limit plate; 13, shifting rod; 14, rotating shaft; 15, guide plate; 16, guide groove. Detailed implementation mode

[0023] The following combines the specification drawings and embodiments to make a further detailed description of the specific implementation mode of the present invention. The following embodiments are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 ,Figure 16 , Figure 17 , Figure 18 and Figure 19 As shown in Figure 18 , Figure 19 , etc., this embodiment provides a device for monitoring the change of magnetic field intensity on the rotor surface, which includes a mounting frame 1. The mounting frame 1 is rotatably connected with a reinforcing plate 2 through a bearing. A positioning and driving assembly 3 is installed on the reinforcing plate 2. A hydraulic rod 4 is fixedly installed on the side end of the mounting frame 1. The top end of the hydraulic rod 4 is fixedly connected with a top plate 5. An omnidirectional monitoring assembly 6 is installed on the top plate 5. A second protective cylinder 7 is welded and fixed on the bottom end surface of the top plate 5. An automatic cleaning assembly 8 is installed on the top plate 5. An electromagnetic field tester 9 is fixedly installed on the top end surface of the top plate 5. The omnidirectional monitoring assembly 6 includes a first protective cylinder 601 and a first connecting plate 608. A first sliding groove 609 is formed through the first connecting plate 608. A second connecting plate 610 is fixedly connected in the first protective cylinder 601. A second sliding groove 611 is formed through the second connecting plate 610. A sliding plate 612 is slidably connected in the second sliding groove 611 in a limited manner. A storage cylinder 613 is welded and fixed on the sliding plate 612. A first extension rod 614 is slidably connected in the storage cylinder 613 in a limited manner. A second extension rod 615 is slidably connected in the first extension rod 614 in a limited manner. A Hall sensor 616 is installed at the bottom of the second extension rod 615. A pressure sensor 618 is fixedly installed at the top end inside the storage cylinder 613. A guide wheel 619 is installed at the top of the storage cylinder 613. A traction rope 620 is slidably connected on the guide wheel 619 in a limited manner. One end of the traction rope 620 is fixedly connected to the top end of the second extension rod 615, and the other end of the traction rope 620 is wound around a coil 621. Through the cooperation of the positioning and driving assembly 3 and the omnidirectional monitoring assembly 6, the automatic clamping, fixing and centering of the whole rotor can be automatically completed. At the same time, the omnidirectional monitoring of the magnetic field intensity on the rotor surface can be automatically and efficiently realized. And combined with the automatic cleaning assembly 8, the positioning and driving assembly 3 can be automatically cleaned, and at the same time, the dust and impurities cleaned can be automatically collected, so as to avoid the dust and impurities remaining in the positioning and driving assembly 3 during the monitoring of the rotor, which affects the stability and accuracy of the monitoring work of the next rotor.

[0025] A rotor surface magnetic field intensity change monitoring system includes a sensing and monitoring module and a pressure sensing module. The output ends of the sensing and monitoring module and the pressure sensing module are both connected to the input end of a signal conditioning module. The output end of the signal conditioning module is respectively connected to the input end of a data processing and analysis module and the input end of a central control module. The output end of the central control module is connected to the input end of a driving module. The output end of the data processing and analysis module is connected to the input end of a fault diagnosis module. The output end of the fault diagnosis module is connected to the input end of a display and alarm module. The output end of the display and alarm module is connected to the input end of a data storage module; the signal conditioning module converts the analog signals output by the sensing and monitoring module and the pressure sensing module into digital signals; and the data processing and analysis module processes the received data, such as denoising, filtering, and feature extraction, and then analyzes the change trend of the magnetic field intensity through an algorithm to determine whether there is an abnormality in the rotor; the fault diagnosis module can diagnose potential fault types, such as rotor eccentricity, winding short circuit, pole damage, etc., based on the magnetic field intensity change data and in combination with the rotor operating state; the monitoring results can be displayed in graphical or numerical form on the user interface through the display and alarm module, and an alarm is triggered when an abnormality is detected.

[0026] Embodiment 2: The solution in Embodiment 1 will be further introduced below in combination with the specific working mode, as detailed in the following description: Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 8 and Figure 9As shown, as a preferred embodiment, on the basis of the above method, further, four sets of positioning and driving components 3 are provided, and the four sets of positioning and driving components 3 are equally angularly distributed on the reinforcing plate 2. The positioning and driving component 3 includes a support rod 301, the support rod 301 is welded and fixed on the top end surface of the reinforcing plate 2, the top end of the support rod 301 is welded and fixed with a fixed frame 302, the center of the bottom end of the fixed frame 302 is welded and fixed with a first servo motor 303, the output end of the first servo motor 303 is connected with a driving shaft 304, a limiting frame 305 and a first push block 306 are welded and fixed on the driving shaft 304, the first push block 306 is in a right triangle shape, the first push blocks 306 are equally angularly distributed on the driving shaft 304, the limiting frame 305 is in a rectangular shape, the inner bottom end of the fixed frame 302 is rotatably connected with a sleeve 307, a first spring 308 is welded and fixed inside the sleeve 307, a second push block 309 is welded and fixed on the first spring 308, the second push block 309 is limited and slidably connected inside the sleeve 307, the sleeve 307 is sleeved on the driving shaft 304, the first springs 308 are equally angularly distributed inside the sleeve 307, the first springs 308 correspond to the second push blocks 309 one by one, the end face of the second push block 309 is inclined. By using the first push block 306 and the second push block 309 to form a ratchet mechanism, the subsequent omnidirectional monitoring and reset work can be realized through the positive and reverse rotation of the driving shaft 304, and at the same time, the automatic cleaning component 8 can be stably driven.

[0027] As Figure 3 , Figure 6 and Figure 7 As shown, as a preferred embodiment, on the basis of the above method, further, a fixed frame 310 is welded and fixed on the sleeve 307, the top end of the fixed frame 310 is welded and fixed with a rotating plate 311, the rotating plate 311 is rotatably connected inside the fixed frame 302, a first through groove 312 is formed through the center of the rotating plate 311, a second spring 313 is welded and fixed on the rotating plate 311, a slider 314 is welded and fixed on the second spring 313, the slider 314 is limited and slidably connected on the rotating plate 311, the top end of the slider 314 is welded and fixed with a clamping plate 315, a rubber pad 316 is fixedly connected to the clamping plate 315, the cross section of the clamping plate 315 is in a right triangle shape, the second springs 313 are equally angularly distributed on the rotating plate 311, and the second springs 313 correspond to the clamping plates 315 through the sliders 314 one by one. The fixed frame 302 is made of a breathable material. Driven by the hydraulic rod 4, the omnidirectional monitoring component 6 can be automatically moved downward by driving the top plate 5, and the rotor can be stably pressed down. At the same time, the pallet 323 and the connecting plate 319 can be used to push each clamping plate 315 to move synchronously towards the middle, so as to automatically clamp and fix the bottom rotating shaft of the rotor and perform central positioning, realizing the automatic clamping and fixing and central positioning work of the whole rotor.

[0028] As Figure 3 ,Figure 6 and Figure 7 As shown in Figure 7 , as a preferred embodiment, on the basis of the above method, further, a connecting plate 319 is fitted inside the fixing frame 302, a fixing plate 317 is welded and fixed inside the fixing frame 302, a limiting rod 318 is welded and fixed on the fixing plate 317, the connecting plate 319 is connected in a limiting and sliding manner on the limiting rod 318, a second through groove 320 is formed through the center of the connecting plate 319, a first ball 321 is rotatably connected in the second through groove 320, a plurality of first balls 321 are provided, and the plurality of first balls 321 are distributed at equal angles in the second through groove 320. The inner wall of the second through groove 320 is inclined. A threaded rod 322 is rotatably connected to the top of the connecting plate 319, a support plate 323 is threadedly connected to the threaded rod 322, a second ball 324 is rotatably connected to the top of the support plate 323, the threaded rods 322 are distributed at equal angles on the top of the connecting plate 319, and the threaded rods 322 correspond to the support plates 323 one by one. The cross section of the support plate 323 is in an "L" shape. By rotating the respective threaded rods 322, the position of the support plate 323 can be conveniently adjusted, so that the rotor can be stably lifted, ensuring the stability of the subsequent monitoring work of the rotor.

[0029] As Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown in Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 , as a preferred embodiment, on the basis of the above method, further, the traction rope 620 is connected in a sliding manner through the storage cylinder 613. The first connecting plate 608 is rotatably connected in the first protective cylinder 601 through a bearing. Four first sliding grooves 609 and four second sliding grooves 611 are provided. The four first sliding grooves 609 are distributed at equal angles on the first connecting plate 608, and the four second sliding grooves 611 are distributed at equal angles on the second connecting plate 610. The first sliding groove 609 is inclined. The first protective cylinder 601 is fixedly connected to the top plate 5. A clamping groove 602 is formed in the top side end of the first protective cylinder 601. A cover plate 603 is sleeved on the top of the first protective cylinder 601. A third spring 604 is fixedly connected to the side end of the cover plate 603. A clamping rod 605 is welded and fixed on the third spring 604. The end of the clamping rod 605 is clamped and connected in the clamping groove 602. Positioning grooves 606 are formed at equal angles at the inner top end of the cover plate 603. The inner diameter of the second protective cylinder 7 is equal to the inner diameter of the first protective cylinder 601. The inner walls of the second protective cylinder 7 and the first protective cylinder 601 are both attached to the outer wall of the fixing frame 302. The first protective cylinder 601 and the cover plate 603 are both made of magnetic shielding materials. Under the combined action of the respective first sliding grooves 609 and the corresponding second sliding grooves 611, the second extension rod 615 can drive the respective Hall sensors 616 to move towards the middle or the side simultaneously, and thus the monitoring positions of the respective Hall sensors 616 can be conveniently adjusted, so that the surface magnetic field intensity monitoring work of rotors of different specifications and sizes can be carried out conveniently and stably.

[0030] As Figure 10 , Figure 11 , Figure 12 and Figure 14 shown, as a preferred embodiment, on the basis of the above method, further, a positioning rod 607 is snap-fitted in the positioning groove 606. The bottom end of the positioning rod 607 is welded and fixed to the first connecting plate 608. The top and bottom of the first extension rod 614 are fixedly connected with fourth springs 617. The fourth spring 617 at the top of the first extension rod 614 is fixedly connected in the receiving cylinder 613. The fourth spring 617 at the bottom of the first extension rod 614 is fixedly connected to the top of the second extension rod 615. A driven shaft 622 is welded and fixed on the coil 621. The bottom end of the driven shaft 622 is welded and fixed with a pressing plate 623. The bottom end of the pressing plate 623 is fixedly connected with a rubber plate 624. The driven shaft 622 is disposed through the first connecting plate 608. The driven shaft 622 is rotatably connected to the second connecting plate 610. The first servo motor 303 can drive the clamped rotor to rotate at a constant speed. And through the downward movement of the pressing plate 623, not only can the rotor be pressed and fixed, but also during the rotation monitoring of the rotor, it can rotate synchronously with the rotor. At this time, under the synchronous rotation action of the pressing plate 623, the traction rope 620 can be evenly wound through the coil 621, and then each second extension rod 615 can be pulled to move upward evenly, so that each Hall sensor 616 can be driven to move synchronously. At this time, under the uniform upward movement of each Hall sensor 616 from bottom to top and the uniform rotation of the rotor itself, the all-round monitoring of the magnetic field intensity on the surface of the rotor is automatically and efficiently realized.

[0031] As Figure 1 , Figure 16 , Figure 17 and Figure 18As shown, as a preferred embodiment, on the basis of the above method, further, the automatic cleaning component 8 includes a ventilation cylinder 801, the ventilation cylinder 801 is welded and fixed on the top plate 5, magnetic frames 802 are fixedly connected to both sides of the ventilation cylinder 801, a collection box 803 is magnetically adsorbed in the magnetic frames 802, collection grooves 804 are provided at the top side ends of the collection box 803 and the ventilation cylinder 801, a filter screen plate 805 is fixedly connected to the top of the ventilation cylinder 801, a first adjusting rod 806 is rotatably connected to the bottom end of the filter screen plate 805, a fifth spring 807 is welded and fixed inside the first adjusting rod 806, the bottom end of the fifth spring 807 is welded and fixed to a second adjusting rod 808, the second adjusting rod 808 is slidably connected in the first adjusting rod 806 in a limited manner, a first brush 809 is fixedly connected to the second adjusting rod 808, a mounting plate 810 is welded and fixed on the first adjusting rod 806, a second brush 811 is fixedly connected to the bottom end surface of the mounting plate 810, an exhaust fan blade 812 and a scraping rod 813 are welded and fixed on the first adjusting rod 806, the scraping rod 813 is in contact with the bottom end surface of the filter screen plate 805, and the bottom end surface of the filter screen plate 805 is flush with the top end surface of the collection groove 804. By the downward movement of the top plate 5, the automatic cleaning component 8 can be driven to move downward to the leftmost positioning drive component 3. At this time, while the rightmost positioning drive component 3 is monitoring the surface magnetic field intensity of the rotor, the leftmost positioning drive component 3 can also be driven by the first servo motor 303 to realize the automatic cleaning of the fixed frame 302, and at the same time, the dust and impurities swept can be automatically collected.

[0032] As Figure 2 and Figure 4 shown, as a preferred embodiment, on the basis of the above method, further, a second servo motor 10 is welded and fixed on the bottom end surface of the mounting frame 1, a turntable 11 and a limiting plate 12 are welded and fixed on the output shaft of the second servo motor 10, a dial rod 13 is welded and fixed on the turntable 11, a rotating shaft 14 is welded and fixed at the center of the bottom end of the reinforcing plate 2, a guide plate 15 is welded and fixed on the rotating shaft 14, a guide groove 16 is provided on the guide plate 15, there are four guide grooves 16, and the four guide grooves 16 are equally angularly distributed on the guide plate 15. By the drive of the second servo motor 10, the reinforcing plate 2 on the rotating shaft 14 can be driven to rotate intermittently through the dial rod 13 and the respective guide grooves 16 on the guide plate 15, and then each group of positioning drive components 3 can be driven to rotate intermittently. At this time, under the intermittent movement of each group of positioning drive components 3, the feeding, monitoring, discharging of the motor rotor and the automatic cleaning of the positioning drive component 3 can be conveniently and efficiently completed.

[0033] Embodiment 3: The solutions in Embodiment 1 and Embodiment 2 are further introduced below in combination with specific working methods, as detailed in the following description: Specifically, when the present rotor surface magnetic field intensity change monitoring device and monitoring system are in use: since the sizes of motor rotors in different batches are different, when monitoring the surface magnetic field intensity of the motor rotors of the next batch, the staff needs to adjust the entire device in advance to adapt to the size of the motor rotors. First, under the driving action of the hydraulic rod 4, the first protective tube 601 and the second protective tube 7 can be driven by the top plate 5 to move upward to separate from the fixed frame 302. Then the staff can rotate the threaded rods 322 in the fixed frame 302. Under the rotation action of the threaded rods 322, the threadedly connected support plates 323 can be driven to move toward the middle or side to ensure that each support plate 323 can lift the motor rotor, and at the same time ensure that the bottom rotor shaft of the motor rotor can pass through the gap between each support plate 323 and be inserted into the second through slot 320 on the connecting plate 319. Through the same operation, the support plates 323 in each fixed frame 302 are adjusted to the appropriate position.

[0034] Then the staff can pull out the latch rod 605 on the cover plate 603 to make it move out of the latch groove 602 on the first protective tube 601, and then complete the removal of the cover plate 603. Then, by toggling the positioning rod 607, the first connecting plate 608 can be driven to rotate. Under the rotation of the first connecting plate 608, combined with the second slide groove 611 to limit the slide plate 612, the corresponding storage tube 613 can be toggled through each first slide groove 609 to move horizontally along the trajectory of the second slide groove 611. At this time, each storage tube 613 can move to the middle or side at the same time, and then the position of the corresponding Hall sensor 616 can be conveniently adjusted through each first extension rod 614 and second extension rod 615, so that each Hall sensor 616 can be evenly Distributed around the motor rotor, the position of the second extension rod 615 can fit with the support plate 323. The larger the motor rotor, the second extension rod 615 and the support plate 323 need to move to the side, otherwise, they both need to move to the middle. Therefore, the second extension rod 615 after position adjustment can always be located above the support plate 323; after the position is adjusted, the clamping rod 605 on the cover plate 603 can be pulled outward again, and the cover plate 603 can be covered on the top of the first protective tube 601. At this time, the positioning rod 607 is engaged with the adjacent positioning groove 606 to achieve the engagement and fixation of the first connecting plate 608. Then, under the elastic action of the third spring 604, the clamping rod 605 is driven to automatically engage with the clamping groove 602 on the first protective tube 601 to complete the engagement and fixation of the cover plate 603.

[0035] At this time, the staff can stand at the front side of the entire device, facing the electromagnetic field tester 9, and then place the motor rotor to be monitored in the fixed frame 302 on the front side. At this time, the bottom rotor shaft of the motor rotor can pass through the gap between the various support plates 323 and be inserted into the second through slot 320 on the connecting plate 319. Then, under the driving action of the second servo motor 10, the limit plate 12 and the lever 13 on the turntable 11 can be driven to rotate. At this time, the lever 13 can move into the guide groove 16 on the guide plate 15 and move the guide plate 15 to rotate counterclockwise. Then, the lever 13 moves out of the guide groove 16 on the guide plate 15 and moves in the lever. Under the action of the continued movement of 13, it can move to the next guide groove 16 and move the guide plate 15 to rotate, and so on, the guide plate 15 can be moved to automatically and stably rotate intermittently counterclockwise, and each time it rotates 90°, at this time the guide plate 15 can drive the reinforcing plate 2 to move synchronously through the rotating shaft 14, and then drive the four fixed frames 302 to automatically and stably switch positions, and when the guide plate 15 stops rotating, the limit plate 12 on the turntable 11 can be rotated to fit with the guide plate 15, and then the guide plate 15 is fit-limited to avoid shaking, thereby ensuring the stability of the intermittent rotation of the guide plate 15.

[0036] After the motor rotor is placed in the front fixing frame 302, the front fixing frame 302 can move to the position directly below the first protective cylinder 601 on the right side under the action of the 90° counterclockwise rotation of the reinforcement plate 2. At this time, under the driving action of the hydraulic rod 4, the first protective cylinder 601 can be driven downward through the top plate 5, and then the extrusion plate 623 can be driven to move downward synchronously through the driven shaft 622 on the second connecting plate 610. At this time, the extrusion plate 623 combined with the rubber plate 624 can contact the top rotor shaft of the motor rotor and push the motor rotor downward. At this time, under the action of the movement of the rotor, the connecting plate 319 can be pushed downward through the supporting plate 323. At this time, under the action of the contact between the second through slot 320 and the inclined surface of the clamping plate 315, during the downward movement of the connecting plate 319, the second through slot 320 can push the clamping plates 315 on each slider 314 to move horizontally toward the middle at the same time. At this time, each clamping plate 315 combined with the rubber pad 316 can automatically and stably clamp and fix the bottom rotor shaft of the rotor and center it.

[0037] And during the downward movement of the first protective cylinder 601, it can drive each second extension rod 615 to move downward synchronously and contact the support plate 323. Under the continuous downward movement of the first protective cylinder 601, the support plate 323 can push the second extension rod 615 to contract and move inside the first extension rod 614 until each clamping plate 315 clamps and fixes the bottom rotor shaft of the rotor. At this time, the first protective cylinder 601 can no longer move downward. At this time, the Hall sensor 616 at the bottom of the second extension rod 615 is exactly opposite to the bottom of the rotor. Subsequently, the first servo motor 303 drives the drive shaft 304 to rotate clockwise. At this time, the drive shaft 304 can drive the second push block 309 to move synchronously through the first push block 306. Furthermore, it can drive the rotating plate 311 to rotate through the fixing frame 310 on the sleeve 307, so as to drive the rotor to rotate synchronously through the clamping plate 315 on the rotating plate 311. At this time, under the uniform rotation of the rotor, it can drive the rubber plate 624 in contact and extrusion at the top to rotate synchronously. At this time, the rubber plate 624 can drive the coil 621 to automatically wind up each traction rope 620 through the driven shaft 622 on the extrusion plate 623. Furthermore, it can drive the first extension rod 614 and the second extension rod 615 to move upward uniformly and move into the storage cylinder 613. At this time, each second extension rod 615 can drive the corresponding Hall sensor 616 to move upward uniformly. Combined with the uniform rotation of the rotor, it can automatically and efficiently monitor the magnetic field strength on the surface of the rotor in all directions.

[0038] After the second extension rod 615 moves to the topmost position, it can contact the pressure sensor 618 at the top end inside the storage cylinder 613. At this time, combined with the central control module, it can drive the drive shaft 304 to rotate counterclockwise through the first servo motor 303. At this time, under the counterclockwise rotation of the drive shaft 304, the second push block 309 loses the clockwise thrust. Similarly, the rotor also loses the clockwise driving force. At this time, under the elastic force of the fourth spring 617, it can drive the first extension rod 614 and the second extension rod 615 to move downward and reset. At this time, the second extension rod 615 drives the coil 621 to rotate in the reverse direction through pulling. Furthermore, it can drive the rotor to rotate automatically in the reverse direction through the extrusion plate 623 on the driven shaft 622. At this time, the rotor drives the rotating plate 311 and the sleeve 307 to rotate automatically in the reverse direction through the clamping plate 315 at the bottom. And because the second push block 309 is stuck between the adjacent first push blocks 306 on both sides, during the counterclockwise movement of the second push block 309, it cannot cross the first push block 306. The second push block 309 can only rotate synchronously following the uniform counterclockwise rotation of the first push block 306. Similarly, at this time, the rotor is rotating counterclockwise uniformly, while the second extension rod 615 drives the Hall sensor 616 to move downward uniformly, and monitors the magnetic field strength on the surface of the rotor again in all directions from top to bottom.

[0039] After the monitoring work is over, the hydraulic rod 4 can be driven to drive the first protective cylinder 601 to move upward and reset through the top plate 5. Subsequently, under the action of the 90° counterclockwise rotation of the reinforcing plate 2, the right fixed frame 302 moves to the rear side, facilitating subsequent blanking. At the same time, the fixed frame 302 after blanking moves to the lower part of the second protective cylinder 7 on the left side to ensure the stability of subsequent cleaning work, while the front fixed frame 302 can move to directly below the first protective cylinder 601 on the right side, facilitating subsequent detection, and so on. And after blanking, the rotor, under the elastic action of the second spring 313, can drive each clamping plate 315 to automatically reset to the side through the slider 314. And under the movement of each clamping plate 315, under the action of the inclined surface, the connecting plate 319 can be pushed to move upward and reset automatically through the second through groove 320, ensuring the stability and convenience of subsequent repetitive working states.

[0040] After the rotor is removed and blanked, it can move to the lower part of the second protective cylinder 7 on the left side. At this time, when the top plate 5 moves downward to drive the all-round monitoring component 6 to detect the rotor in the right fixed frame 302, the second protective cylinder 7 can synchronously move downward to the left fixed frame 302. And the second adjusting rod 808 combined with the fifth spring 807 can telescopically move in the first adjusting rod 806 to adapt to the downward movement distance of the top plate 5, ensuring that the bottom of the second adjusting rod 808 can be automatically and stably inserted into the limit frame 305. At this time, under the action of the counterclockwise rotation of the drive shaft 304, the second push block 309 on the first spring 308 can be pushed by the first push block 306 to move into the sleeve 307. Therefore, the drive shaft 304 can drive the second adjusting rod 808 to rotate through the limit frame 305 without driving the sleeve 307. Therefore, each clamping plate 315 will not rotate. At this time, the second adjusting rod 808 can drive the first adjusting rod 806 to rotate synchronously. Combined with the first brush 809 and the second brush 811 on the mounting plate 810, it can automatically and stably perform a comprehensive cleaning treatment on the placement part and contact part of the rotor. At the same time, by driving the exhaust fan blades 812 to rotate, the first adjusting rod 806 can suck the dust and impurities cleaned in the fixed frame 302. The excess air is discharged through the filter plate 805, while the dust and impurities are filtered by the filter plate 805. And under the rotation of the first adjusting rod 806, the dust and impurities filtered on the filter plate 805 can be dialed into the collection box 803 through the collection groove 804 by the scraping rod 813 for automatic collection. And the collection box 803 can be disassembled and assembled conveniently and stably under the magnetic action of the magnetic frame 802, ensuring the convenience of subsequent transfer and treatment work of dust and impurities.

[0041] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should all be covered within the scope of the claims of the present invention.

Claims

1. A monitoring device for the change of magnetic field intensity on the surface of a rotor, comprising a mounting frame (1), characterized in that, The installation frame (1) is rotatably connected with a reinforcing plate (2) through a bearing. A positioning drive assembly (3) is installed on the reinforcing plate (2). A hydraulic rod (4) is fixedly installed on the side end of the installation frame (1). The top end of the hydraulic rod (4) is fixedly connected with a top plate (5). An omnidirectional monitoring assembly (6) is installed on the top plate (5). A second protective cylinder (7) is fixedly welded on the bottom end surface of the top plate (5). An automatic cleaning assembly (8) is installed on the top plate (5). An electromagnetic field tester (9) is fixedly installed on the top end surface of the top plate (5). The omnidirectional monitoring assembly (6) includes a first protective cylinder (601) and a first connecting plate (608). A first sliding groove (609) is formed through the first connecting plate (608). A second connecting plate (610) is fixedly connected inside the first protective cylinder (601). A second sliding groove (611) is formed through the second connecting plate (610). A sliding plate (612) is slidably connected in the second sliding groove (611) in a limited manner. A storage cylinder (613) is fixedly welded on the sliding plate (612). A first extension rod (614) is slidably connected in the storage cylinder (613) in a limited manner. A second extension rod (615) is slidably connected in the first extension rod (614) in a limited manner. A Hall sensor (616) is installed at the bottom of the second extension rod (615). A pressure sensor (618) is fixedly installed at the top end inside the storage cylinder (613). A guide wheel (619) is installed at the top of the storage cylinder (613). A traction rope (620) is slidably connected on the guide wheel (619) in a limited manner. One end of the traction rope (620) is fixedly connected to the top end of the second extension rod (615). The other end of the traction rope (620) is wound around a coil (621).

2. The rotor surface magnetic field intensity change monitoring device according to claim 1, wherein Four groups of the positioning drive assemblies (3) are provided, and the four groups of positioning drive assemblies (3) are distributed at equal angles on the reinforcing plate (2). The positioning drive assembly (3) includes a support rod (301). The support rod (301) is fixedly welded on the top end surface of the reinforcing plate (2). A fixed frame (302) is fixedly welded at the top end of the support rod (301). A first servo motor (303) is fixedly welded at the center of the bottom end of the fixed frame (302). The output end of the first servo motor (303) is connected with a drive shaft (304). A limiting frame (305) and a first push block (306) are fixedly welded on the drive shaft (304). The first push block (306) is in a right triangle shape, and the first push blocks (306) are distributed at equal angles on the drive shaft (304).

3. The rotor surface magnetic field intensity change monitoring device according to claim 2, characterized in that, The inner bottom end of the fixed frame (302) is rotatably connected to a sleeve (307). A first spring (308) is welded and fixed inside the sleeve (307). A second push block (309) is welded and fixed on the first spring (308). The second push block (309) is limited and slidably connected inside the sleeve (307). The first springs (308) are distributed at equal angles inside the sleeve (307). The first springs (308) correspond to the second push blocks (309) one by one. The end face of the second push block (309) is inclined.

4. A rotor surface magnetic field intensity change monitoring device according to claim 3, characterized in that, A fixed frame (310) is welded and fixed on the sleeve (307). A rotating plate (311) is welded and fixed at the top end of the fixed frame (310). A first through groove (312) is formed through the central part of the rotating plate (311). A second spring (313) is welded and fixed on the rotating plate (311). A slider (314) is welded and fixed on the second spring (313). The slider (314) is limited and slidably connected to the rotating plate (311). A clamping plate (315) is welded and fixed at the top end of the slider (314). A rubber pad (316) is fixedly connected to the clamping plate (315). The cross section of the clamping plate (315) is in the shape of a right triangle. The second springs (313) are distributed at equal angles on the rotating plate (311). The second springs (313) correspond to the clamping plates (315) one by one through the sliders (314).

5. A rotor surface magnetic field intensity change monitoring device according to claim 4, characterized in that A connecting plate (319) is attached to the inside of the fixed frame (302). A second through groove (320) is formed through the central part of the connecting plate (319). A first ball (321) is rotatably connected inside the second through groove (320). The inner wall of the second through groove (320) is inclined. A threaded rod (322) is rotatably connected to the top of the connecting plate (319). A support plate (323) is threadedly connected to the threaded rod (322). A second ball (324) is rotatably connected to the top of the support plate (323). The threaded rods (322) are distributed at equal angles on the top of the connecting plate (319). The threaded rods (322) correspond to the support plates (323) one by one. The cross section of the support plate (323) is in the shape of an "L".

6. The monitoring device for the change of the magnetic field strength on the surface of a rotor according to claim 1, characterized in that The traction rope (620) is slidably connected through the storage cylinder (613). The first connecting plate (608) is rotatably connected in the first protective cylinder (601) through a bearing. There are four first sliding grooves (609) and four second sliding grooves (611). The four first sliding grooves (609) are equally angularly distributed on the first connecting plate (608), and the four second sliding grooves (611) are equally angularly distributed on the second connecting plate (610). The first sliding groove (609) is inclined. The first protective cylinder (601) is fixedly connected to the top plate (5). A clamping groove (602) is opened at the top side end of the first protective cylinder (601). A cover plate (603) is sleeved on the top of the first protective cylinder (601). A third spring (604) is fixedly connected to the side end of the cover plate (603). A clamping rod (605) is welded and fixed on the third spring (604). Positioning grooves (606) are equally angularly opened at the inner top end of the cover plate (603). Both the first protective cylinder (601) and the cover plate (603) are made of magnetic shielding materials.

7. The rotor surface magnetic field strength change monitoring device according to claim 6, characterized in that, A positioning rod (607) is snap-fitted in the positioning groove (606). The bottom end of the positioning rod (607) is welded and fixed to the first connecting plate (608). Fourth springs (617) are fixedly connected to the top and bottom of the first extension rod (614). A driven shaft (622) is welded and fixed on the coil (621). The bottom end of the driven shaft (622) is welded and fixed to an extrusion plate (623). A rubber plate (624) is fixedly connected to the bottom end of the extrusion plate (623). The driven shaft (622) is rotatably connected to the second connecting plate (610).

8. A rotor surface magnetic field intensity change monitoring device according to claim 1, characterized in that The automatic cleaning component (8) includes a ventilation cylinder (801). The ventilation cylinder (801) is welded and fixed to the top plate (5). Magnetic frames (802) are fixedly connected to both sides of the ventilation cylinder (801). A collection box (803) is magnetically adsorbed in the magnetic frames (802). Collection grooves (804) are opened at the top side end of the collection box (803) and the top side end of the ventilation cylinder (801). A filter screen plate (805) is fixedly connected to the top of the ventilation cylinder (801). A first adjusting rod (806) is rotatably connected to the bottom end of the filter screen plate (805). A fifth spring (807) is welded and fixed in the first adjusting rod (806). A second adjusting rod (808) is welded and fixed to the bottom end of the fifth spring (807). A first brush (809) is fixedly connected to the second adjusting rod (808). A mounting plate (810) is welded and fixed to the first adjusting rod (806). A second brush (811) is fixedly connected to the bottom end face of the mounting plate (810). An exhaust fan blade (812) and a scraping rod (813) are welded and fixed to the first adjusting rod (806). The scraping rod (813) is in contact with the bottom end face of the filter screen plate (805). The bottom end face of the filter screen plate (805) is flush with the top end face of the collection groove (804).

9. The monitoring device for the change of the magnetic field intensity on the surface of a rotor according to claim 8, characterized in that, A second servo motor (10) is fixedly welded to the bottom end surface of the installation frame (1). A turntable (11) and a limit plate (12) are fixedly welded to the output shaft of the second servo motor (10). A dial rod (13) is fixedly welded to the turntable (11). A rotating shaft (14) is fixedly welded to the center of the bottom end of the reinforcing plate (2). A guide plate (15) is fixedly welded to the rotating shaft (14). Four guide grooves (16) are equiangularly formed in the guide plate (15).

10. A monitoring system for the change in the magnetic field strength on the rotor surface, which uses the monitoring device for the change in the magnetic field strength on the rotor surface described in any one of claims 1-9, is characterized in that, It includes a sensing and monitoring module and a pressure sensing module. The output ends of the sensing and monitoring module and the pressure sensing module are both connected to the input end of the signal conditioning module. The output end of the signal conditioning module is respectively connected to the input end of the data processing and analysis module and the input end of the central control module. The output end of the central control module is connected to the input end of the drive module. The output end of the data processing and analysis module is connected to the input end of the fault diagnosis module. The output end of the fault diagnosis module is connected to the input end of the display and alarm module. The output end of the display and alarm module is connected to the input end of the data storage module.

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