CN107899765A - A kind of high speed rotary atomizer based on air bearing - Google Patents
A kind of high speed rotary atomizer based on air bearing Download PDFInfo
- Publication number
- CN107899765A CN107899765A CN201711235483.3A CN201711235483A CN107899765A CN 107899765 A CN107899765 A CN 107899765A CN 201711235483 A CN201711235483 A CN 201711235483A CN 107899765 A CN107899765 A CN 107899765A
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- China
- Prior art keywords
- expreess locomotive
- electric expreess
- speed
- speed electric
- main shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
Abstract
A kind of high speed rotary atomizer based on air bearing of the present invention, includes high-speed electric expreess locomotive, wear-resisting atomizing wheel, cover type nut and high-speed joint；High-speed electric expreess locomotive includes the radial dynamic pressure air bearing and thrust self-acting air bearing of high-speed electric expreess locomotive casing, high-speed electric expreess locomotive stator, high speed rotor of motor, high-speed electric expreess locomotive main shaft, a series of supports and guiding main shaft；High-speed electric expreess locomotive casing is connected with extraneous ring flange, and support is provided for high speed centrifugal atomization device；High-speed electric expreess locomotive stator is installed on high-speed electric expreess locomotive casing internal；High speed rotor of motor is sleeved on high-speed electric expreess locomotive main shaft by hot charging or the heart method that rises；Radial dynamic pressure air bearing plays support and cushioning effect；Thrust self-acting air bearing provides high-speed electric expreess locomotive main shaft axial support and guiding；High-speed electric expreess locomotive main shaft lower end connects wear-resisting atomizing wheel with taper, and is closed and locked with cover type nut；The round end of high-speed joint is connected with feed pipe, and the rotation section of high-speed joint is threadedly secured to high-speed electric expreess locomotive main shaft upper end.
Description
Technical field
It is more particularly to a kind of using dynamic the present invention relates to the rotary atomizer for being used in spray drying or desulfurization depickling
Press the novel high speed rotary atomizer of air bearing.The invention further relates to for a kind of novel charging side in atomiser system
Formula.
Background technology
During slurry spraying, its atomizing type mainly has two kinds：One is nozzle atomization, another is rotation mist
Change.Nozzle atomization is usually carried out by single channel Fluid pressure nozzle or two-way fluid tip, simultaneously, includes atomizing wheel
Rotary-atomizing be then suitable for various application scenarios.In rotary atomizer, slurries are directed in atomizing wheel.Due to
The high peripheral speed of atomizing wheel, liquid are decomposed under the rubbing action between air and slurries on the surface of atomizing wheel,
Flowed out in film-form from the passage of atomizing wheel or aperture.The pattern of drop depends on following factor, example after liquid atomization
Such as liquid property, the speed of atomizing wheel and configuration etc..The operational speed range of general rotary atomizer for 5000rpm extremely
25000rpm, sometimes may be lower, low can arrive 3000rpm, sometimes can higher, up to 350000rpm.Atomizing wheel
Diameter be usually 5cm to 50cm.Several difference size and the rotary atomizer of configuration can be used for dairy products, become more meticulous
Work, pharmacy, wholesome food is processed and the Product processing of heavy chemical processing and other fields.The application range of rotary atomizer can be from
Minimum, with empty gas-powered use for laboratory model, treating capacity is 1-10 kgs/hour, is driven to maximum 1000kw motors
Commercial model, it can handle the liquid feed rate more than 200 ton hours.The atomizing wheel of rotary atomizer can be by common electricity
Machine is driven by gear-box or belt speedup, can also be directly driven by high-speed electric expreess locomotive.
In the atomization drying technique of processing food, dairy products and medicine, pollution cannot receive.Therefore, at this
Rotary atomizer under being used under kind occasion, it is necessary to take the necessary precautionary measures, such as the grease lubricating bearing using sealing.Adopt
After the grease lubricating bearing of sealing, the working time of atomizer depends not only on the risk of pollution, also depends on grease lubrication
Bearing failure caused by the abrasion of bearing and lubricating grease failure.Due in rotary atomizer, the energy source of slurry spraying
Rotated in the high speed of atomizing wheel, this is also meaned that, rotary atomizer needs high rotating speed to provide corresponding energy.Therefore, institute
Bearing must also work at high speed, and the service life of bearing can be caused drastically to decline.In fact, even if spend substantial amounts of essence
For power on design bearing and detection bearing temperature, the life expectancy of bearing is also very limited amount of.This can cause to prevent machine
Device, which breaks down, to be damaged atomizer in itself or produces the product of inferior quality, and increases extra downtime to carry out extra inspection
Survey and check atomizer unit status.
The content of the invention
, can the present invention provides a kind of novel high speed rotary atomizer based on air bearing under such background
To provide a kind of safety, the pollution-free and controllable mode of cost is atomized feed liquid, for production and processing food, dairy products and medicine
Product, it can also be used to chemical process and atmospheric treatment field.Present invention also offers a kind of one kind being used in atomiser system is new
The feeding manner of grain husk, eliminates the feed liquid distributor in traditional rotary atomizer, simplifies atomizer structure, shortens shafting length
Degree, improves the allowable rotating speed of high speed rotary atomizer.
In order to achieve the above object, the present invention is realized using following technical scheme：
The present invention is a kind of high speed rotary atomizer based on air bearing, and component includes high-speed electric expreess locomotive 1, wear-resisting atomization
Wheel 2, cover type nut 3 and high-speed joint 4.
High-speed electric expreess locomotive 1Including high-speed electric expreess locomotive casing 101, high-speed electric expreess locomotive stator 102, high speed rotor of motor 103, high-speed electric expreess locomotive
The radial dynamic pressure air bearing 105 and thrust self-acting air bearing 106 of main shaft 104, a series of supports and guiding main shaft.
High-speed electric expreess locomotive casing 101 is connected with extraneous ring flange, and providing installation for high speed centrifugal atomization device supports.High-speed electric expreess locomotive
The inside of casing 101 is according to shafting design installation high-speed electric expreess locomotive stator 102, radial dynamic pressure air bearing 105 and thrust hydrodynamic air
Bearing 106, while also required gas-liquid channel is worked normally comprising high speed rotary atomizer.
High-speed electric expreess locomotive stator 102 is installed on inside high-speed electric expreess locomotive casing 101, and high-speed electric expreess locomotive stator 102 and high-speed electric expreess locomotive turn
Son 103 can use high frequency asynchronous motor, can also use magneto；The type of cooling of high-speed electric expreess locomotive stator 102 both can be with
Using water cooling, air cooling can also be used.
High speed rotor of motor 103 is different according to design, using asynchronous or synchronous rotor.High speed rotor of motor 103 passes through
Hot charging or the heart method that rises, are sleeved on high-speed electric expreess locomotive main shaft 104.
High-speed electric expreess locomotive main shaft 104 has three positions, is lower bearing supporting section 141, upper bearing (metal) supporting section 142 and thrust respectively
Bearings section 143；Lower bearing supporting section 141 and upper bearing (metal) supporting section 142 are located at 103 both sides of high speed rotor of motor, thrust shaft
The top that supporting section 143 is located at upper bearing (metal) supporting section 142 is held, is one section of thrust button being relatively large in diameter, generally the 2-5 of the diameter of axle
Times.
Radial dynamic pressure air bearing 105 is made of three parts, pushes up paper tinsel 105a, ripple paper tinsel 105b and bearing block 105c.Push up paper tinsel
105a is directly contacted with high-speed electric expreess locomotive main shaft 104 in bearing penetralia；Ripple paper tinsel 105b is in paper tinsel 105a and bearing block 105c is pushed up
Between, play resilient support and cushioning effect.The typical material of top paper tinsel 105a and ripple paper tinsel 105b includes metal, alloy, non-metallic material
Material.The side that top paper tinsel 105a is contacted with high-speed electric expreess locomotive main shaft 104 can spray or plate one layer with other surface treatment methods
Wear-resistant coating, to provide suitable friction surface.
In real work, since the stickiness of air acts on, it can be formed between high-speed electric expreess locomotive main shaft 104 and top paper tinsel 105a
A thin layer of pressure-air film, 104 radial dynamic pressure air bearing 105 of support high-speed electric expreess locomotive main shaft is in lower bearing supporting section 141
The support and guiding of radial direction are provided high-speed electric expreess locomotive main shaft 104 with 142 position of upper bearing (metal) supporting section；
Thrust self-acting air bearing 106 is made of several thrust blocks, each thrust block by top paper tinsel 106a, ripple paper tinsel 106b and
Bearing block 106c is formed；Thrust self-acting air bearing 106 carries high-speed electric expreess locomotive main shaft 104 at 143 position of thrust bearing supporting section
For axial support and guiding.The principle of thrust self-acting air bearing 106 is consistent with the principle of radial dynamic pressure air bearing 105,
Repetition elaboration is not done herein.The form of thrust self-acting air bearing 106 do not limit to the pattern in attached drawing, as long as can provide it is suitable
Deformation and damping characteristic, it is possible to be applied among the present invention.
Wear-resisting atomizing wheel 2For the workpiece of high speed rotary atomizer, usually it is made of disk body and wear resistant spray nozzle.Wear-resisting mist
Change wheel 2 to lock by cone match, and using cover type nut 3 with high-speed electric expreess locomotive main shaft 104.The rotating speed of wear-resisting atomizing wheel 2 answers root
Selected according to product and the different qualities of technique, usually in 10000rpm to 40,000rpm, in actual production, rotating speed preferably 15,
000rpm to 25,000rpm.The linear velocity of its atomizing wheel of the diameter of wear-resisting atomizing wheel 2 is 50 meter per seconds to 400 meter per seconds.The application
As long as signified high speed is more than 3000rpm.
Cover type nut 3Wear-resisting atomizing wheel 2 is locked by screw thread, prevents wear-resisting atomizing wheel 2 from loosening at work.
High-speed joint 4Round end be connected with feed pipe, the rotation section of high-speed joint 4 is threadedly secured to
104 upper end of high-speed electric expreess locomotive main shaft, 104 lower end of high-speed electric expreess locomotive main shaft connect wear-resisting atomizing wheel 2 with taper, and with 3 envelope of cover type nut
Close and lock.
A kind of feed process using the novel high speed rotary atomizer based on air bearing, this method include following step
Suddenly：
Step 1：Feed liquid enters the center flow channels of high-speed electric expreess locomotive main shaft 104 by the center flow channels 4a of high-speed joint 4
104a。
Step 2：Feed liquid reaches 104 lower end of main shaft by center flow channels 104a, and in the process, feed liquid is due to centrifugal force
Even action be distributed in cross section of fluid channel.
Step 3：Feed liquid uniformly passes through several through holes 104b and enters in 104 lower end of main shaft under the influence of centrifugal force
Wear-resisting atomizing wheel 2, is then further atomized by wear-resisting atomizing wheel 2.
Step 4：Extraneous gases at high pressure are introduced above atomizing wheel by path 107 and high-speed electric expreess locomotive casing and main shaft
In gap, sealing and shielding are provided to atomizing wheel and high-speed electric expreess locomotive.
This feeding manner novelty regards feed liquid distributor in itself using main shaft, eliminates in traditional rotary atomizer
Feed liquid distributor, simplify the structure and passage of atomizer, reduce manufacture cost；At the same time, feed liquid distributor disappears
Lose also so that high-speed electric expreess locomotive main shaft of the present invention is reduced, so as to improve rotating speed, raising atomization quality；More into one
Step, feed liquid can go out the heat transfer that rotor and bearing produce by center flow channels so that the cooling condition of high-speed electric expreess locomotive
It is greatly improved, improves the service life of high-speed electric expreess locomotive.
A kind of novel high speed rotary atomizer based on air bearing of the present invention directly drives the shape of atomizing wheel using high-speed electric expreess locomotive
Formula, critical piece include high-speed electric expreess locomotive, atomizing wheel and high-speed joint.High-speed electric expreess locomotive supports it using self-acting air bearing
Shafting.Self-acting air bearing has been proved to be suitable for high-speed rotating machinery, than the friction power loss that traditional bearing possesses smaller.
Therefore, the service life of bearing is extended, and replacement cost is minimized.Self-acting air bearing is situated between another advantage is that lubricating
Matter is air or other process gas, such as inert gas so that lubricating oil or lubricating grease is not required in high speed rotary atomizer.
In the second aspect of the present invention, by the way of the high speed rotary atomizer is fed using axle center, feed liquid is eliminated
Distributor.The high-speed electric expreess locomotive main shaft of atomizer is hollow shaft, and upper end connection high-speed joint, lower end is connected with taper and is atomized
Wheel, and closed and locked with cover type nut.Main shaft is provided with some symmetrical through holes at atomizing wheel so that main shaft inside and atomizing wheel
Internal unicom.High-speed joint is with being that one kind can transmit compressed air hydraulic oil, water, lubrication under high-speed rotating state
The device of the media such as fat.Slurries are entered inside high-speed electric expreess locomotive main shaft by high-speed joint, under the influence of centrifugal force uniformly
Slave through hole in spray, into atomizing wheel, be then further atomized wheel atomization.Thus, eliminate in traditional rotary atomizer
Feed liquid distributor, simplify the structure and passage of atomizer, reduce manufacture cost；At the same time, feed liquid distributor disappears
Lose also so that high-speed electric expreess locomotive main shaft of the present invention is reduced, so as to improve rotating speed, raising atomization quality；More into one
Step, feed liquid can go out the heat transfer that rotor and bearing produce by center flow channels so that the cooling condition of high-speed electric expreess locomotive
It is greatly improved, improves the service life of high-speed electric expreess locomotive.
In the third aspect of the present invention, high-speed electric expreess locomotive of the invention can use high frequency asynchronous motor, can also use forever
Magneto；The type of cooling of high-speed electric expreess locomotive stator can both use water cooling, can also use air cooling.The rotary speed root of atomizing wheel
Determined according to the characteristic of product, usually in 10000rpm to 40,000rpm, in actual production, rotating speed preferably 15,000rpm is extremely
25,000rpm.The peripheral speed of atomizing wheel depends on the diameter and rotating speed of atomizing wheel, usually in 50m/s to 400m/s.
In the other side of the present invention, one gases at high pressure is incorporated into from the external world above atomizing wheel and high-speed electric expreess locomotive casing
With in the gap of main shaft.This strand of gases at high pressure can prevent atomizing wheel suction hot-air and be mixed with the air of product to atomizing wheel
Side, prevents because product is solidificated in atomizing wheel imbalance caused by atomization wheel surface.At the same time, this strand of gas just completely cuts off
With the unicom of extraneous atomization space inside high-speed electric expreess locomotive, prevent slurries, the gas with product or enter electricity at a high speed containing acid gas
Self-acting air bearing or high-speed electric expreess locomotive component are either worn in corrosion inside machine, have been ensured inside rotary atomizer high-speed electric expreess locomotive
Operating condition, improves the service life of rotary atomizer.
Compared with prior art, the beneficial effects of the invention are as follows：
(1)：The present invention supports the shafting of the high speed rotary atomizer using self-acting air bearing.Self-acting air bearing
It is relatively low to the demand ratio that monitors and check, and the cycle for replacing bearing is longer than traditional bearing, can effectively reduce atomizer
Maintenance cost.In addition, self-acting air bearing uses air or process gas to be inherently eliminated as lubricant medium
The contaminated risk of feed liquid of atomization.This possesses big advantage in the production technology of processing food, dairy products and medicine.
(2)：By the way of the present invention is fed using axle center, the feed liquid distributor in traditional rotary atomizer is eliminated, is simplified
The structure and passage of atomizer, reduces manufacture cost；At the same time, the disappearance of feed liquid distributor also causes of the present invention
High-speed electric expreess locomotive main shaft be reduced, coordinate the excellent damping characteristic of self-acting air bearing, the shafting of rotary atomizer can be with
As flex rotor, run in the case of higher than single order rotating speed, so as to greatly improve the rotating speed of atomizer, improve atomization
Quality；Further, the cooling condition of high-speed electric expreess locomotive is improved, and extends the service life of high-speed electric expreess locomotive.
(3)：The present invention is Large-power High-Speed electric-machine directly-driven atomizing wheel, and overall structure is simple, small, light-weight, operation
It is relatively reliable.
Brief description of the drawings
Fig. 1 is the schematic diagram of the high speed rotary atomizer of the present invention.
Fig. 2 is the diagrammatic cross-section of the high speed rotary atomizer shafting of the present invention.
Fig. 3 and Fig. 4 applies to a kind of radial dynamic pressure air bearing of the present invention and a kind of thrust self-acting air bearing
Principle schematic.
Embodiment
Embodiments of the present invention are further illustrated below in conjunction with the accompanying drawings, in the following description, are not described in detail many institutes
Known function or construction.
Fig. 1 is the schematic diagram of the present invention, and the present invention is a kind of novel high speed rotary atomizer based on air bearing, mainly
Component has high-speed electric expreess locomotive 1, wear-resisting atomizing wheel 2, cover type nut 3 and high-speed joint 4.High-speed electric expreess locomotive includes high-speed electric expreess locomotive casing
101, high-speed electric expreess locomotive stator 102, high speed rotor of motor 103, high-speed electric expreess locomotive main shaft 104, a series of footpath of support and guiding main shafts
To self-acting air bearing 105 and thrust self-acting air bearing 106.Wear-resisting atomizing wheel 2 is matched somebody with somebody with high-speed electric expreess locomotive main shaft 104 by the conical surface
Close, and locked using cover type nut 3.High-speed joint 4 is connected through a screw thread with high-speed electric expreess locomotive main shaft 104, is placed at a high speed
Above rotary atomizer.
High-speed electric expreess locomotive main shaft is divided into three positions, and lower bearing supporting section 141 and upper bearing (metal) supporting section 142 are located at high-speed electric expreess locomotive
103 both sides of rotor, thrust bearing supporting section 143 are located at the top of upper bearing (metal) supporting section 142, are one section of thrusts being relatively large in diameter
Disk.
Radial dynamic pressure air bearing 105 is in lower bearing supporting section 141 and upper bearing (metal) supporting section 142 to high-speed electric expreess locomotive main shaft
104 provide the support and guiding of radial direction, and thrust self-acting air bearing 106 is in thrust bearing supporting section 143 to high-speed electric expreess locomotive main shaft
104 provide axial support and guiding.
Fig. 2 is the diagrammatic cross-section of shafting of the present invention, and high speed rotor of motor 103 is sleeved on by hot charging or the heart method that rises
On high-speed electric expreess locomotive main shaft 104.High-speed joint 4 is threadedly secured to 104 upper end of high-speed electric expreess locomotive main shaft, high-speed electric expreess locomotive main shaft
104 lower ends connect wear-resisting atomizing wheel 2 with taper, and are closed and locked with cover type nut 3.Feed liquid passes through high-speed joint 4
Center flow channels 4a enters the center flow channels 104a of high-speed electric expreess locomotive main shaft 104, and feed liquid reaches main shaft lower end by center flow channels 104a,
Wear-resisting atomizing wheel 2 is uniformly entered by several through holes 104b under the influence of centrifugal force, then further by wear-resisting atomization
The atomization of wheel 2.
High-speed electric expreess locomotive stator 102 and high speed rotor of motor 103 can use high frequency asynchronous motor, can also use Permanent Magnet and Electric
Machine；The type of cooling of high-speed electric expreess locomotive stator 102 can both use water cooling, can also use air cooling.
As shown in Figure 1, one extraneous gases at high pressure introduced by path 107 above atomizing wheel and high-speed electric expreess locomotive casing with
In the gap of main shaft, sealing and shielding are provided to atomizing wheel and high-speed electric expreess locomotive.
The rotating speed of wear-resisting atomizing wheel 2 should be selected according to product and the different qualities of technique, usually in 10000rpm to 40,
000rpm, in actual production, rotating speed preferably 15,000rpm to 25,000rpm.High-speed electric expreess locomotive shafting in the present invention, Ke Yigen
According to demand, it is designed to that working speed is less than the stiff shafting of its single order rotating speed, can also be designed to that working speed is higher than its single order
The flexible shaft system of rotating speed.
Fig. 3 applies to a kind of schematic diagram of radial dynamic pressure air bearing of the present invention, for illustrating radial dynamic pressure air
The operation principle of bearing.Radial dynamic pressure air bearing 105 is made of three parts, pushes up paper tinsel 105a, ripple paper tinsel 105b and bearing block
105c.As shown in figure 3, top paper tinsel 105a is directly contacted with high-speed electric expreess locomotive main shaft 104 in bearing penetralia；Ripple paper tinsel 105b is in top paper tinsel
Among 105a and bearing block 105c, resilient support and cushioning effect are played.In real work, since the stickiness of air acts on,
A thin layer of pressure-air film can be formed between high-speed electric expreess locomotive main shaft 104 and top paper tinsel 105a, supports high-speed electric expreess locomotive main shaft
104。
Fig. 4 applies to a kind of key diagram of thrust self-acting air bearing of the present invention, for illustrating thrust dynamic pressure sky
The operation principle of gas bearing.As shown in figure 4, thrust self-acting air bearing 106 is made of several thrust blocks, each thrust block by
Push up paper tinsel 106a, ripple paper tinsel 106b and bearing block 106c composition.The principle of thrust self-acting air bearing and radial dynamic pressure air bearing
Principle is consistent, does not do repetition elaboration herein.
The material selection of self-acting air bearing is determined by those skilled in the art.Push up the typical material of paper tinsel and ripple paper tinsel
Including metal, alloy, nonmetallic materials.The side that top paper tinsel is contacted with main shaft can spray or with other surface treatment methods
One layer of Wear-resistant coating is plated, to provide suitable friction surface.The form of self-acting air bearing is not limited to and the sample in attached drawing
Formula, as long as suitable deformation and damping characteristic can be provided, it is possible to be applied among the present invention.
The foregoing is only a preferred embodiment of the present invention, but scope of the present invention it is not limited to this, it is any
Those familiar with the art the invention discloses technical scope in, technique according to the invention scheme and its design
It is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
- A kind of 1. high speed rotary atomizer based on air bearing, it is characterised in that：Include high-speed electric expreess locomotive, wear-resisting atomizing wheel, Cover type nut and high-speed joint；High-speed electric expreess locomotive include high-speed electric expreess locomotive casing, high-speed electric expreess locomotive stator, high speed rotor of motor, high-speed electric expreess locomotive main shaft, a series of Support and the radial dynamic pressure air bearing and thrust self-acting air bearing of guiding main shaft；High-speed electric expreess locomotive casing is connected with extraneous ring flange, and providing installation for high speed centrifugal atomization device supports；In high-speed electric expreess locomotive casing Portion is also included according to shafting design installation high-speed electric expreess locomotive stator, radial dynamic pressure air bearing and thrust self-acting air bearing High speed rotary atomizer works normally required gas-liquid channel；High-speed electric expreess locomotive stator is installed on high-speed electric expreess locomotive casing internal；High speed rotor of motor is sleeved on high-speed electric expreess locomotive main shaft by hot charging or the heart method that rises；High-speed electric expreess locomotive main shaft has three positions, is lower bearing supporting section, upper bearing (metal) supporting section and thrust bearing supporting section respectively；Under Bearings section and upper bearing (metal) supporting section are located at high speed rotor of motor both sides, and thrust bearing supporting section is located at upper bearing (metal) supporting section Top；Radial dynamic pressure air bearing is made of three parts, the first top paper tinsel, first wave paper tinsel and first bearing seat；First top paper tinsel is in axis Penetralia is held, is directly contacted with high-speed electric expreess locomotive main shaft；First wave paper tinsel plays elastic branch among the first top paper tinsel and first bearing seat Support and cushioning effect；Thrust self-acting air bearing is made of several thrust blocks, and each thrust block is by the second top paper tinsel, the second ripple paper tinsel and the second axis Bearing forms；Thrust self-acting air bearing provides axial support to high-speed electric expreess locomotive main shaft at thrust bearing supporting section position and draws Lead；Wear-resisting atomizing wheel is the workpiece of high speed rotary atomizer, is made of disk body and wear resistant spray nozzle；Under high-speed electric expreess locomotive main shaft End connects wear-resisting atomizing wheel with taper, and is closed and locked with cover type nut；Cover type nut locks wear-resisting atomizing wheel by screw thread, prevents wear-resisting atomizing wheel from loosening at work；The round end of high-speed joint is connected with feed pipe, and the rotation section of high-speed joint is threadedly secured to electricity at a high speed Owner's axis upper end.
- A kind of 2. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：High-speed electric expreess locomotive Stator and high speed rotor of motor use high frequency asynchronous motor or magneto.
- A kind of 3. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：High-speed electric expreess locomotive The type of cooling of stator uses water cooling or air cooling.
- A kind of 4. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：High-speed electric expreess locomotive Rotor uses asynchronous or synchronous rotor.
- A kind of 5. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：Thrust bearing Supporting section is the big thrust button of one section of diameter, is 2-5 times of the diameter of axle.
- A kind of 6. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：First top paper tinsel Material with first wave paper tinsel is metal, alloy and nonmetallic materials.
- A kind of 7. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：First top paper tinsel The side contacted with high-speed electric expreess locomotive main shaft sprays one layer of Wear-resistant coating, there is provided friction surface.
- A kind of 8. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：In electricity at a high speed One layer thin of pressure-air film can be formed between owner's axis and the first top paper tinsel, supports high-speed electric expreess locomotive main shaft radial direction self-acting air bearing The support and guiding of radial direction are provided high-speed electric expreess locomotive main shaft in lower bearing supporting section and upper bearing (metal) supporting section position.
- A kind of 9. high speed rotary atomizer based on air bearing according to claim 1, it is characterised in that：Wear-resisting atomization The rotating speed of wheel is in 10000rpm to 40,000rpm；The linear velocity of its atomizing wheel of the diameter of wear-resisting atomizing wheel 2 is 50 meter per seconds to 400 Meter per second.
- 10. a kind of feed process of novel high speed rotary atomizer based on air bearing using described in claim 1, the party Method includes the following steps：Step 1：Feed liquid enters the center flow channels of high-speed electric expreess locomotive main shaft by the center flow channels of high-speed joint；Step 2：Feed liquid reaches main shaft lower end by center flow channels, and in the process, feed liquid is due to the even action point of centrifugal force It is distributed in cross section of fluid channel；Step 3：Feed liquid uniformly enters wear-resisting atomizing wheel in main shaft lower end by several through holes under the influence of centrifugal force, Then further it is atomized by wear-resisting atomizing wheel；Step 4：Extraneous gases at high pressure are introduced into above atomizing wheel and in the gap of high-speed electric expreess locomotive casing and main shaft by path, Sealing and shielding are provided to atomizing wheel and high-speed electric expreess locomotive.
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| CN201711235483.3A CN107899765A (en) | 2017-11-30 | 2017-11-30 | A kind of high speed rotary atomizer based on air bearing |
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| CN201711235483.3A CN107899765A (en) | 2017-11-30 | 2017-11-30 | A kind of high speed rotary atomizer based on air bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109301995A (en) * | 2018-10-08 | 2019-02-01 | 佛山特博科技有限公司 | A kind of direct-drive type atomizer |
| CN109301995B (en) * | 2018-10-08 | 2024-05-03 | 宁波虎渡能源科技有限公司 | Direct-drive atomizer |
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Application publication date: 20180413 |