CN114593150A - Durable magnetic suspension bearing - Google Patents
Durable magnetic suspension bearing Download PDFInfo
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- CN114593150A CN114593150A CN202210338762.7A CN202210338762A CN114593150A CN 114593150 A CN114593150 A CN 114593150A CN 202210338762 A CN202210338762 A CN 202210338762A CN 114593150 A CN114593150 A CN 114593150A
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- Prior art keywords
- bearing
- magnetic suspension
- mounting
- installation
- fixed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/058—Bearings magnetic; electromagnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/0459—Details of the magnetic circuit
- F16C32/0468—Details of the magnetic circuit of moving parts of the magnetic circuit, e.g. of the rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
- F16C32/047—Details of housings; Mounting of active magnetic bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a durable magnetic suspension bearing which comprises a supporting frame, wherein an installation mechanism is arranged at the top of the supporting frame, the installation mechanism comprises an installation shell, a fastening piece is movably connected to the outer surface of the installation shell, a fixing plate is movably connected to the surface of the fastening piece, a bolt is connected to the surface of the fixing plate in a sliding mode through an anti-slip pad, the bolt is connected to the fastening piece in a sliding mode, and a threaded hole is formed in the surface of the installation shell. Through the setting of installation mechanism, realized when fixing the fixed plate, can form the power opposite with the bolt to the fixed plate for screw thread and screw hole on the bolt can in close contact with, avoid the magnetic suspension fan when the operation, the acutely of production rock and lead to the bolt to relax and drop. Meanwhile, the protection cover, the installation shell, the first installation barrel and the second installation barrel which are arranged adopt an integral encapsulation process, so that the bearing or the sensor coil is prevented from being damaged by an ash layer or corrosive gas, and the reliability of the magnetic suspension bearing and the sensor is greatly improved.
Description
Technical Field
The invention relates to the technical field of magnetic suspension, in particular to a durable magnetic suspension bearing.
Background
Magnetic levitation refers to a technique of using magnetic force to overcome gravity to levitate an object. The suspension technology mainly comprises magnetic suspension, optical suspension, acoustic suspension, air flow suspension, electric suspension, particle beam suspension and the like, wherein the magnetic suspension technology is mature. Magnetic levitation technology has many implementation forms, and can be mainly divided into passive levitation in which the system is self-stable, active levitation in which the system is not self-stable, and the like. The magnetic suspension blower is a mechanical device for conveying gas, and adopts core technologies such as a magnetic suspension bearing, a three-dimensional flow impeller, a high-speed permanent magnet synchronous motor, a high-efficiency frequency converter speed regulation, intelligent monitoring control and the like, when the magnetic suspension blower is started, the magnetic suspension blower is suspended firstly and then rotates, no friction and no lubrication are needed, the three-dimensional flow impeller and a rotor are directly connected, and zero transmission loss is realized. Is a high-tech green energy-saving environment-friendly product. The magnetic suspension air blower adopts a magnetic suspension bearing without contact and mechanical friction and a high-speed high-power permanent magnet synchronous motor to directly drive the high-efficiency fluid impeller, overcomes the defects of the traditional air blower and the air suspension air blower, has the advantages of high efficiency, low noise, less faults, no need of a lubricating system and the like, and can still enable a rotor rotating at a high speed to be safely stopped by depending on a protection bearing in the system even if the magnetic suspension bearing breaks down, so that the equipment cannot be seriously damaged.
However, in the prior art, the magnetic suspension fan is in operation, the generated violent shaking easily causes the bolt to be loosened and dropped, wherein the reliability of the magnetic suspension bearing and the sensor is lower, and meanwhile, when the magnetic suspension fan operates normally, the fan can rotate, so that when the magnetic suspension fan operates, the self temperature is too high, the phenomenon that the service life of parts is shortened is caused, and when the magnetic suspension fan needs to be installed and detached, the magnetic suspension fan is inconvenient for workers to operate and needs to use tools, thereby greatly reducing the working efficiency.
Disclosure of Invention
The technical problems to be solved by the invention are that the bolts are easy to loosen and fall off due to vibration generated in the operation process of the existing magnetic suspension fan, so that the reliability of a magnetic suspension bearing and a sensor is reduced, the bearing is more complicated to disassemble and assemble, and the working efficiency is not high. In order to overcome the disadvantages of the prior art. In order to overcome the defects in the prior art, the invention provides a durable magnetic suspension bearing which can fasten bolts and avoid accidental falling in the working process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a durable magnetic suspension bearing which comprises a supporting frame, wherein an installation mechanism is arranged at the top of the supporting frame, the installation mechanism comprises an installation shell, a fastening piece is movably connected to the outer surface of the installation shell, a fixing plate is movably connected to the surface of the fastening piece, a bolt is connected to the surface of the fixing plate in a sliding mode through an anti-slip pad and is connected with the fastening piece in a sliding mode, a threaded hole is formed in the surface of the installation shell, and the bolt is in threaded connection with the threaded hole.
In a preferred technical scheme of the invention, the mounting mechanism further comprises a first flange plate, the first flange plate is fixedly connected to the surface of the mounting shell, the top of the mounting shell is fixedly connected with two mounting rings, a mounting frame is fixedly connected between the two mounting rings, the arranged mounting rings are convenient for positioning the mounting shell, and the mounting frame is arranged between the two mounting rings, so that the whole magnetic suspension fan can be conveniently taken out through the mounting frame.
In a preferred technical scheme of the invention, a magnetic suspension mechanism is arranged in the mounting shell, the magnetic suspension mechanism comprises a rotor, active magnetic suspension bearings are arranged on two sides of the rotor, a first falling bearing is rotatably connected on the right surface of the active magnetic suspension bearing on the right side, a connecting shaft is rotatably connected on the left surface of the active magnetic suspension bearing on the left side, a thrust disc is fixedly connected on the surface of the connecting shaft, a second falling bearing is rotatably connected on the left end of the connecting shaft, a centrifugal impeller is rotatably connected on the second falling bearing through a positioning bearing, so that the rotor can drive the two active magnetic suspension bearings to rotate, the active magnetic suspension bearing on the right side drives the first falling bearing to rotate, the active magnetic suspension bearing on the left side drives the connecting shaft to rotate, the connecting shaft drives the thrust disc to rotate, the axial position detection and the axial bearing are arranged close to the end of the large impeller, axial collision and abrasion possibly caused by thermal expansion of the impeller are avoided to the maximum extent.
In a preferred technical scheme of the invention, the outer surface of the connecting shaft is fixedly connected with a protective cover, the protective cover is fixedly connected to the surface of the mounting shell, and the arranged protective cover and the mounting shell adopt an integral encapsulation process, so that the bearing or the sensor coil is prevented from being damaged by an ash layer or corrosive gas, and the reliability of the magnetic suspension bearing and the sensor is greatly improved.
In a preferred technical scheme of the invention, the surface of the protective cover is communicated with an air duct, the inner surface of the air duct is fixedly connected with a dust screen, and the dust screen is arranged to prevent dust from entering the magnetic suspension fan from the air duct, so that excessive dust accumulation on elements in the magnetic suspension fan is avoided, and the internal elements are damaged.
In a preferred technical scheme of the invention, a first mounting cylinder is fixedly connected to the left side of the dust cover, a second mounting cylinder is fixedly connected to the right surface of the mounting shell, the first drop bearing is rotatably connected with the second mounting cylinder, a fixed shaft is fixedly connected to the right end of the first drop bearing, a fan is fixedly connected to the surface of the fixed shaft, a connecting pipeline is arranged at the top of the second mounting cylinder in a communicating manner, a second flange plate is fixedly connected to the left surface of the second mounting cylinder, a mounting plate is fixedly connected to the bottom of the support frame, a plurality of mounting holes are formed in the surface of the mounting plate, and the plurality of mounting holes are formed, so that the support frame can be conveniently mounted, the position of the magnetic suspension fan can be fixed, and the fan can rotate when the magnetic suspension fan normally operates through the fan arranged at the end of the fixed shaft, the device can be cooled simultaneously when the device is used in self-suspension grading, and the phenomenon that the service life of parts is shortened due to overhigh self temperature of the magnetic suspension fan during operation is avoided.
In a preferred technical scheme of the invention, the left surface of the first mounting cylinder is provided with a positioning pipeline, the right surface of the second mounting cylinder is fixedly connected with a protection plate through a screw, the first falling bearing is rotatably connected with the protection plate, and the protection plate is arranged so that when a part needs to be replaced, the protection plate can be taken out and elements in the second mounting cylinder can be overhauled by screwing the screw, the surface of the mounting shell is provided with anti-skidding threads, and the surface of the mounting shell is provided with a plurality of mounting through holes, so that the magnetic suspension fan can be conveniently mounted, and an external pipeline can be mounted on the positioning pipeline.
In a preferred technical scheme of the invention, fixed vertical plates are fixedly arranged on the left sides of the outer surfaces of the two mounting plates, two-way threaded rods are arranged on the right sides of the outer surfaces of the two fixed vertical plates through bearings, the outer surfaces of the two-way threaded rods are in meshed connection with transmission slide blocks, connecting rods are fixedly arranged at the bottoms of the transmission slide blocks, sliding baffles are fixedly arranged at the bottoms of the connecting rods, the two-way threaded rods rotate on the outer surfaces of the two fixed vertical plates through the bearings, at the moment, the two transmission slide blocks are driven to move on the outer surfaces of the two-way threaded rods, and drives the two connecting rods to slide in the two rectangular through holes to drive the two sliding baffles to move relatively, thereby reach and make things convenient for the staff to fix the device, improve work efficiency, still make things convenient for follow-up dismantlement.
In a preferred technical scheme of the invention, the plurality of sliding baffles are averagely divided into two groups, clamping plates are respectively arranged on the opposite sides of the two groups of sliding baffles through a plurality of reset springs, miniature transmission wheels are fixedly sleeved on the outer surfaces of the two bidirectional threaded rods close to the right side, miniature transmission belts are respectively sleeved on the outer surfaces of the two miniature transmission wheels, and the arrangement of the plurality of reset springs and the plurality of clamping plates improves the buffering capacity during clamping, prevents the damage of a mounting plane and improves the service life of the device.
In a preferred technical scheme of the invention, a rotating handle is fixedly mounted on the right side of the outer surface of one of the two-way threaded rods, rectangular through holes are formed in the bottoms of the two mounting plates, the width of the two rectangular through holes is matched with the width of the connecting rods, supporting rods are movably sleeved in the centers of the outer surfaces of the two-way threaded rods, the two supporting rods are fixedly embedded in the two mounting plates, and a worker rotates the rotating handle to drive one of the micro-driving wheels to rotate, so that the other micro-driving wheel is driven to rotate through a micro-driving belt, and the two-way threaded rods are driven to rotate.
The invention has the beneficial effects that:
1. according to the durable magnetic suspension bearing, the installation mechanism is arranged, so that a force opposite to that of a bolt can be formed on the fixing plate when the fixing plate is fixed, threads on the bolt can be in close contact with a threaded hole, and the bolt is prevented from loosening and falling due to severe shaking generated when a magnetic suspension fan operates;
2. the protective cover, the mounting shell, the first mounting cylinder and the second mounting cylinder are arranged by adopting an integral encapsulation process, so that an ash layer or corrosive gas is prevented from damaging a bearing or a sensor coil, and the reliability of the magnetic suspension bearing and the sensor is greatly improved;
3. through the fan that sets up at the tip of fixed axle for when magnetic suspension fan normal operating, the fan can rotate, makes when using from the suspension grading, can dispel the heat to the device simultaneously, avoids the magnetic suspension fan when the operation, and self high temperature leads to the phenomenon of spare part life-span to subtract to take place.
4. Magnetic attraction between magnetic stripe an and the magnetic stripe b through the dust removal subassembly, make and wipe the strip and can with dust pocket surface in close contact with, so that wipe the strip and follow the ring piece and scrape the deashing at the dust pocket outer wall, in order to guarantee the adsorption efficiency of dust pocket to the dust, receive the air current to blow and slide to the dust pocket rear end after when the ring piece, the shrink spring will be stretched and take place elastic deformation, when the air current weakens or stops, the shrink spring will resume elastic deformation, the front end to the dust pocket is drawn to the strip of wiping in ring spare and outside, thereby realize wiping the strip at dust pocket surface cycle scraping, reach the function of automatic deashing.
5. Put the mounting panel on the support frame on the plane that needs the installation, and make two grip blocks be located two mounting surface's both sides, staff's rotatory handle at this moment drives one of them miniature drive wheel at first and rotates, thereby it rotates to drive another miniature drive wheel through miniature driving belt, thereby it rotates to drive two-way threaded rods, it rotates at two fixed riser's surface to make two-way threaded rods pass through the bearing, it removes at the surface of two-way threaded rods to drive two transmission slider this moment, and drive two connecting rods and slide in the inside of two rectangle through-holes and drive two sliding damper and carry out relative movement, thereby reach and make things convenient for the staff to fix the device, and the work efficiency is improved, still make things convenient for follow-up dismantlement.
6. Through the setting of a plurality of reset spring and a plurality of grip blocks, buffer capacity when improving the centre gripping prevents that mounting surface from damaging, improves the life of device.
Drawings
FIG. 1 is a schematic perspective view of a durable magnetic suspension bearing according to the present invention;
FIG. 2 is a schematic bottom view of a durable magnetic suspension bearing according to the present invention;
FIG. 3 is a schematic structural diagram of a durable magnetic suspension bearing support frame according to the present invention;
FIG. 4 is a schematic sectional top view of a durable magnetic suspension bearing of the present invention;
FIG. 5 is a schematic sectional elevational view of a durable magnetic suspension bearing in accordance with the present invention;
FIG. 6 is a schematic diagram of a top view of a durable magnetic suspension bearing of the present invention;
FIG. 7 is a schematic diagram of the bottom part of a durable magnetic suspension bearing of the present invention;
fig. 8 is a schematic diagram of the internal structure of the mounting plate of a durable magnetic suspension bearing according to the present invention.
In the figure:
1. a support frame; 2. an installation mechanism; 201. mounting a shell; 202. a fastener; 203. a fixing plate; 204. a bolt; 205. a first flange; 206. a mounting ring; 207. a mounting frame; 3. a magnetic suspension mechanism; 301. a rotor; 302. an active magnetic suspension bearing; 303. a first drop bearing; 304. a connecting shaft; 305. a thrust disc; 306. a second drop bearing; 307. a centrifugal impeller; 4. a protective cover; 5. a protection plate; 6. a dust screen; 7. a first mounting cylinder; 8. a second mounting cylinder; 9. a fixed shaft; 10. a fan; 11. connecting a pipeline; 12. mounting a plate; 13. positioning the pipeline; 14. a micro-transmission wheel; 15. rotating the handle; 16. a rectangular through hole; 17. a micro drive belt; 18. a connecting rod; 19. a transmission slide block; 20. a sliding baffle; 21. a return spring; 22. a clamping plate; 23. fixing a vertical plate; 24. a support bar; 25. two-way threaded rod.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, the embodiment provides a durable magnetic suspension bearing, which includes a supporting frame 1, a mounting mechanism 2 is disposed on the top of the supporting frame 1, the mounting mechanism 2 includes a mounting shell 201, a fastening member 202 is movably connected to the outer surface of the mounting shell 201, a fixing plate 203 is movably connected to the surface of the fastening member 202, a bolt 204 is slidably connected to the surface of the fixing plate 203 through a non-slip mat, the bolt 204 is slidably connected to the fastening member 202, a threaded hole is formed in the surface of the mounting shell 201, the bolt 204 is threadedly connected to the threaded hole, and the fastening member 202 is disposed, so that when the fixing plate 203 is fixed, a force opposite to the bolt 204 can be formed on the fixing plate 203, so that the thread on the bolt 204 can be in close contact with the threaded hole, and the bolt 204 is prevented from being loosened and falling due to violent shaking generated when the magnetic suspension fan operates.
In the invention, through the arrangement of the mounting mechanism, the fixing plate 203 can be forced to be opposite to the bolt 204 when the fixing plate 203 is fixed, so that the thread on the bolt 204 can be in close contact with the threaded hole, the bolt 204 is prevented from loosening and falling off due to severe shaking generated when the magnetic suspension fan operates, the integral encapsulation packaging process is adopted through the arranged protective cover, the mounting shell 201, the first mounting cylinder 7 and the second mounting cylinder 8, the bearing or the sensor coil is prevented from being damaged by ash layers or corrosive gas, the reliability of the magnetic suspension bearing and the sensor is greatly improved, the fan 10 is arranged at the end part of the fixing shaft 9, when the magnetic suspension fan operates normally, the fan 10 can rotate, the device can be simultaneously cooled when the magnetic suspension fan is used in a self-suspension grading manner, the self-temperature is prevented from being overhigh when the magnetic suspension fan operates, the phenomenon that leads to spare part life-span to subtract takes place, setting through the dust removal subassembly, realized because of the magnetic attraction between magnetic stripe a and the magnetic stripe b, make wiping strip can with dust bag surface in close contact with, so that wiping strip follows the ring piece and carry out the deashing of scraping at the dust bag outer wall, in order to guarantee the adsorption efficiency of dust bag to the dust, receive the air current to blow and slide to the dust bag rear end after when the ring piece, the shrink spring will be stretched and take place elastic deformation, when the air current weakens or stops, the shrink spring will resume elastic deformation, the front end to the dust bag is drawn to the wiping strip in ring piece and outside, thereby realize wiping strip at dust bag surface circulation scraping, reach the function of automatic deashing.
As shown in fig. 1 and 6, the mounting mechanism 2 further includes a first flange 205, the first flange 205 is fixedly connected to the surface of the mounting shell 201, the two mounting rings 206 are fixedly connected to the top of the mounting shell 201, the mounting frame 207 is fixedly connected between the two mounting rings 206, the mounting rings 206 are convenient to position the mounting shell 201, and the mounting frame 207 is arranged between the two mounting rings 206, so that the whole magnetic suspension fan can be conveniently taken out through the mounting frame 207.
As shown in fig. 4, a magnetic suspension mechanism 3 is disposed inside the mounting housing 201, the magnetic suspension mechanism 3 includes a rotor 301, active magnetic suspension bearings 302 are disposed on two sides of the rotor 301, a first falling bearing 303 is rotatably connected to a right surface of the right active magnetic suspension bearing 302, a connecting shaft 304 is rotatably connected to a left surface of the left active magnetic suspension bearing 302, a thrust disc 305 is fixedly connected to a surface of the connecting shaft 304, a second falling bearing 306 is rotatably connected to a left end of the connecting shaft 304, the second falling bearing 306 is rotatably connected to a centrifugal impeller 307 through a positioning bearing, so that the rotor 301 can drive the two active magnetic suspension bearings 302 to rotate, the right active magnetic suspension bearing 302 drives the first falling bearing 303 to rotate, the left active magnetic suspension bearing 302 drives the connecting shaft 304 to rotate, the connecting shaft 304 drives the thrust disc 305 to rotate, and the axial position detection and axial bearing are disposed near the large impeller end, axial collision and abrasion possibly caused by thermal expansion of the impeller are avoided to the maximum extent.
As shown in fig. 4, the outer surface of the connecting shaft 304 is fixedly connected with the protective cover 4, the protective cover 4 is fixedly connected to the surface of the mounting shell 201, and the arranged protective cover 4 and the mounting shell 201 adopt an integral encapsulation process, so that the bearing or the sensor coil is prevented from being damaged by an ash layer or corrosive gas, and the reliability of the magnetic suspension bearing and the sensor is greatly improved.
As shown in fig. 1 and 6, the surface of the protective cover 4 is communicated with an air duct, the inner surface of the air duct is fixedly connected with a dust screen 6, and the dust screen 6 is arranged to prevent dust from entering the magnetic suspension fan from the air duct, so that the dust accumulation of internal elements of the magnetic suspension fan is excessive, and the internal elements are damaged.
As shown in fig. 1-3, a first mounting cylinder 7 is fixedly connected to the left side of the dust cover, a second mounting cylinder 8 is fixedly connected to the right surface of the mounting shell 201, a first drop bearing 303 is rotatably connected to the second mounting cylinder 8, a fixed shaft 9 is fixedly connected to the right end of the first drop bearing 303, a fan 10 is fixedly connected to the surface of the fixed shaft 9, a connecting pipeline 11 is arranged in communication with the top of the second mounting cylinder 8, a second flange plate is fixedly connected to the left surface of the second mounting cylinder 8, and the fan 10 is arranged at the end of the fixed shaft 9, so that when the magnetic levitation blower normally operates, the fan 10 can rotate, so that when the magnetic levitation blower is used, the device can be simultaneously cooled, and the phenomenon that the service life of parts is shortened due to overhigh self temperature when the magnetic levitation blower operates is avoided.
As shown in fig. 1-2, a mounting plate 12 is fixedly connected to the bottom of the support frame 1, and a plurality of mounting holes are formed in the surface of the mounting plate 12, so that the support frame 1 is convenient to mount, and the position of the magnetic suspension fan can be fixed.
As shown in fig. 1 to 6, the left surface of the first mounting cylinder 7 is provided with a positioning pipe 13 so that the positioning pipe 13 can be mounted with an external pipe.
As shown in fig. 1 to 4, the protection plate 5 is fixedly connected to the right surface of the second installation cylinder 8 through screws, and the first drop bearing 303 is rotatably connected to the protection plate 5, and the protection plate 5 is arranged so that the protection plate 5 can be taken out by screwing the screws when a component needs to be replaced, and the elements inside the second installation cylinder 8 can be overhauled.
As shown in fig. 6, the surface of the mounting shell 201 is provided with anti-skid threads, and the surface of the mounting shell 201 is provided with a plurality of mounting through holes, so that the magnetic suspension fan is conveniently mounted.
As shown in fig. 7-8, the left sides of the outer surfaces of the two mounting plates 12 are both fixedly provided with a fixed vertical plate 23, the right sides of the outer surfaces of the two fixed vertical plates 23 are both provided with two-way threaded rods 25 through bearings, the outer surfaces of the two-way threaded rods 25 are both engaged and connected with transmission sliders 19, the bottoms of the transmission sliders 19 are both fixedly provided with connecting rods 18, the bottoms of the connecting rods 18 are both fixedly provided with sliding baffles 20, the sliding baffles 20 are divided into two groups, the opposite sides of the two groups of sliding baffles 20 are both provided with clamping plates 22 through a plurality of reset springs 21, the outer surfaces of the two-way threaded rods 25 near the right side are both fixedly sleeved with micro transmission wheels 14, the outer surfaces of the two micro transmission wheels 14 are both sleeved with micro transmission belts 17, the right side of the outer surface of one of the two-way threaded rod 25 is fixedly provided with a rotating handle 15, the bottoms of the two mounting plates 12 are both provided with rectangular through holes 16, the width of the two rectangular through holes 16 is matched with the width of the connecting rods 18, the center of the outer surfaces of the two bidirectional threaded rods 25 is movably sleeved with a support rod 24, the two support rods 24 are fixedly embedded inside the two mounting plates 12, the two clamping plates 22 are positioned at two sides of the two mounting plates, at the moment, a worker rotates the rotating handle 15 to drive one of the miniature transmission wheels 14 to rotate firstly, so that the other miniature transmission wheel 14 is driven to rotate through the miniature transmission belt 17, the two bidirectional threaded rods 25 are driven to rotate on the outer surfaces of the two fixed vertical plates 23 through bearings, at the moment, the two transmission slide blocks 19 are driven to move on the outer surfaces of the two bidirectional threaded rods 25, and the two connecting rods 18 are driven to slide inside the two rectangular through holes 16 to drive the two slide baffles 20 to move relatively, the arrangement of the plurality of return springs 21 and the plurality of clamping plates 22 improves the buffering capacity during clamping.
The main components comprise four parts, namely a high-efficiency centrifugal impeller 307, a magnetic suspension bearing, a permanent magnet synchronous motor and a special frequency converter. The fan adopts an integrated design, a high-speed motor, a frequency converter, a magnetic suspension bearing, a microprocessing control panel and the like of the fan are integrally designed and integrated, and the core of the fan is the magnetic suspension bearing and permanent magnet motor technology; the impeller 307 is centrifuged at high speed. The impeller is designed by adopting a ternary flow theory and optimized by parameters, so that the efficiency of the impeller is maximized, and the working area is wide; the material is high-strength forged aluminum or titanium alloy, so that the deformation resistance is high; the coating is precisely processed by a numerical control processing center, and has better corrosion resistance. The highest efficiency of the impeller working point can reach 85% measured by experts of national fluid laboratories; high-speed permanent magnet synchronous motor. And a permanent magnet is arranged on a main shaft of the motor to ensure the magnetism of the main shaft. The coil wound by the stator silicon steel sheet of the motor generates oscillation magnetic force, and the rotating speed and the oscillation magnetic field are kept consistent in the operation process, so that synchronization is realized. The permanent magnet motor adopts a magnetic suspension bearing, has the characteristics of no mechanical friction, low noise, low vibration and long service life, and the highest rotating speed can reach 50000 r/min; provided is a magnetic suspension bearing. The rotating shaft is stably suspended through controllable electromagnetic attraction, and is free from any mechanical resistance in the rotating process; motor intelligence control system. The magnetic suspension blower is generally controlled by vector-free variable frequency control, and the rotation of the permanent magnet motor is controlled by a frequency adjusting method, so that the flow of the blower is controlled, and the use under various working conditions is met. The intelligent control system can predict surge and realize local control, and the equipment is provided with a GPRS system to realize remote monitoring and data transmission.
The use method and the working principle of the device are as follows: the mounting plate 12 on the support frame 1 is placed on a plane to be mounted, and the two clamping plates 22 are positioned at two sides of the two mounting planes, at this time, a worker rotates the rotating handle 15 to drive one of the micro transmission wheels 14 to rotate, so as to drive the other micro transmission wheel 14 to rotate through the micro transmission belt 17, thereby driving the two-way threaded rods 25 to rotate, so that the two-way threaded rods 25 rotate on the outer surfaces of the two fixed vertical plates 23 through bearings, at this time, the two transmission sliders 19 are driven to move on the outer surfaces of the two-way threaded rods 25, and the two connecting rods 18 are driven to slide inside the two rectangular through holes 16 to drive the two sliding baffles 20 to move relatively, thereby achieving the purposes of facilitating the worker to fix the device, improving the working efficiency and facilitating subsequent disassembly, at this time, through the arrangement of the plurality of return springs 21 and the plurality of clamping plates 22, the buffering capacity during clamping is improved, the damage of a mounting plane is prevented, the service life of the device is prolonged, the fastening piece 202 and the fixing plate 203 are sequentially abutted against the mounting shell 201, the bolt 204 penetrates through the fixing plate 203 and the fastening piece, the bolt 204 can be screwed into a threaded hole in the mounting shell 201, the fixing plate 203 can be fixed on the mounting shell 201, the fastening piece 202 is arranged, when the fixing plate 203 is fixed, a force opposite to that of the bolt 204 can be formed on the fixing plate 203, threads on the bolt 204 can be in close contact with the threaded hole, the phenomenon that the bolt 204 is loosened and falls due to severe shaking generated when a magnetic suspension fan operates is avoided, the detection of the axial position and the arrangement of an axial bearing are close to the end of a large impeller, axial collision and abrasion possibly caused by the thermal expansion of the impeller are avoided to the maximum extent, and the arranged protective cover 4, the mounting shell 201, the first mounting cylinder 7 and the second mounting cylinder 8 adopt an integral encapsulation packaging process, prevent that grey layer or corrosive gas from causing destruction to bearing or sensor coil, greatly improve the reliability of magnetic suspension bearing and sensor, the guard plate 5 of setting, make when needs are changed the part, through twisting the screw, can take out guard plate 5, fan 10 through the tip setting at fixed axle 9, make when the magnetic suspension fan normal operating, fan 10 can rotate, make when the use from the suspension is hierarchical, can dispel the heat to the device simultaneously, avoid the magnetic suspension fan when the operation, self high temperature, the phenomenon that leads to the spare part life-span to subtract the weak point takes place.
Other techniques of the present embodiment employ existing techniques.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides a durable magnetic suspension bearing, its characterized in that, includes support frame (1), the top of support frame (1) is provided with installation mechanism (2), installation mechanism (2) are including installation shell (201), the surface swing joint of installation shell (201) has fastener (202), the surface swing joint of fastener (202) has fixed plate (203), there is bolt (204) on the surface of fixed plate (203) through slipmat sliding connection, bolt (204) and fastener (202) sliding connection, the screw hole has been seted up on the surface of installation shell (201), bolt (204) and screw hole threaded connection.
2. The durable magnetic bearing of claim 1, wherein: installation mechanism (2) is still including first ring flange (205), first ring flange (205) fixed connection is on the surface of installation shell (201), two collar (206) of top fixedly connected with of installation shell (201), two fixedly connected with mounting bracket (207) between collar (206).
3. The durable magnetic suspension bearing of claim 2, wherein: the inside of installation shell (201) is provided with magnetic suspension mechanism (3), magnetic suspension mechanism (3) are including rotor (301), the both sides of rotor (301) are provided with initiative magnetic suspension bearing (302), the right side the right surface of initiative magnetic suspension bearing (302) is rotated and is connected with first bearing (303) that falls, the left side the left surface of initiative magnetic suspension bearing (302) is rotated and is connected with connecting axle (304), the fixed surface of connecting axle (304) is connected with thrust disc (305), the left end of connecting axle (304) is rotated and is connected with the second and falls bearing (306), the second falls bearing (306) and rotates through locating bearing and is connected with centrifugal impeller (307).
4. The durable magnetic bearing of claim 3, wherein: the outer surface of connecting axle (304) is fixed with protection casing (4), protection casing (4) fixed connection is on the surface of installation shell (201).
5. The durable magnetic bearing of claim 4, wherein: the surface of the protective cover (4) is communicated with an air duct, and the inner surface of the air duct is fixedly connected with a dustproof net (6).
6. The durable magnetic bearing of claim 5, wherein: the first installation section of thick bamboo of left side fixedly connected with (7) of dust cover, the right side fixed surface of installation shell (201) is connected with a second installation section of thick bamboo (8), first fall bearing (303) and second installation section of thick bamboo (8) and rotate and be connected, first right-hand member fixedly connected with fixed axle (9) of falling bearing (303), the fixed surface of fixed axle (9) is connected with fan (10), the top intercommunication of a second installation section of thick bamboo (8) is provided with connecting tube (11), the left side fixed surface of a second installation section of thick bamboo (8) is connected with the second ring flange, the bottom fixedly connected with mounting panel (12) of support frame (1), a plurality of mounting holes have been seted up on the surface of mounting panel (12).
7. The durable magnetic suspension bearing of claim 6, wherein: the left surface of a first installation section of thick bamboo (7) is equipped with positioning pipeline (13), there is guard plate (5) right surface of a second installation section of thick bamboo (8) through screw fixedly connected with, first drop bearing (303) rotates with guard plate (5) and is connected, the surface of installation shell (201) is provided with anti-skidding screw thread, a plurality of mounting through-holes have been seted up on the surface of installation shell (201).
8. The durable magnetic bearing of claim 7, wherein: two the equal fixed mounting in left side of mounting panel (12) surface has fixed riser (23), two-way threaded rod (25), two are all installed through the bearing in the right side of fixed riser (23) surface the equal meshing of surface of two-way threaded rod (25) is connected with transmission slider (19), and is a plurality of the equal fixed mounting in bottom of transmission slider (19) has connecting rod (18), and is a plurality of the equal fixed mounting in bottom of connecting rod (18) has slide damper (20).
9. The durable magnetic bearing of claim 8, wherein: it is a plurality of slide damper (20) are on average divided into two sets ofly, and are two sets of slide damper (20) relative one side all installs grip block (22) through a plurality of reset spring (21), two the surface that two-way threaded rod (25) are close to the right side all fixes the cover and is equipped with miniature drive wheel (14), two the surface of miniature drive wheel (14) all is equipped with miniature driving belt (17).
10. The durable magnetic bearing of claim 9, wherein: one of them the right side fixed mounting of two-way threaded rod (25) surface has rotatory handle (15), two rectangle through-hole (16), two have all been seted up to the bottom of mounting panel (12) the width and a plurality of rectangle through-hole (16) the width phase-match of connecting rod (18), two the center department of two-way threaded rod (25) surface all moves about the cover and is equipped with bracing piece (24), two bracing piece (24) are all fixed to inlay and establish in the inside of two mounting panels (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210338762.7A CN114593150B (en) | 2022-03-30 | 2022-03-30 | Durable magnetic suspension bearing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210338762.7A CN114593150B (en) | 2022-03-30 | 2022-03-30 | Durable magnetic suspension bearing |
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| CN114593150B CN114593150B (en) | 2023-05-09 |
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| CN114992156A (en) * | 2022-08-05 | 2022-09-02 | 福安市鑫远电机有限公司 | Water pump with bearing connecting device |
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| CN114593150B (en) | 2023-05-09 |
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