CN105281538A - G type ball screw electric speed regulation disc type magnetic coupling - Google Patents

G type ball screw electric speed regulation disc type magnetic coupling Download PDF

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Publication number
CN105281538A
CN105281538A CN201410370498.0A CN201410370498A CN105281538A CN 105281538 A CN105281538 A CN 105281538A CN 201410370498 A CN201410370498 A CN 201410370498A CN 105281538 A CN105281538 A CN 105281538A
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China
Prior art keywords
speed
screw
rotor
speed regulation
gear
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Pending
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CN201410370498.0A
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Chinese (zh)
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李启飞
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李启飞
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Priority to CN201410370498.0A priority Critical patent/CN105281538A/en
Publication of CN105281538A publication Critical patent/CN105281538A/en
Pending legal-status Critical Current

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Abstract

A G type ball screw electric speed regulation disc type magnetic coupling can be incorporated into the fields of power transmission, energy conservation and emission reduction, mechanical equipment and magnetic fore drive, and includes two series: an air cooling G type ball screw electric speed regulation disc type magnetic coupling (FTG series) and a liquid cooling G type ball screw electric speed regulation disc type magnetic coupling (YTG series). The G type ball screw electric speed regulation disc type magnetic coupling finds an economically feasible method for speed regulation and energy conservation of mechanical equipment.

Description

G type ball-screw electric speed regulation disc type magnetic coupler
Technical field
Power transmission, energy-saving and emission-reduction, dynamic equipment, magnetic drive.
Background technology
From human use ground Magnetic driving invention compass, the research on utilization of magnetic field energy just never stopped.Along with the development of modern theory of magnetism, the application in the industry of magnetic drive product just emerges in an endless stream, magnetic drive pump, magnetic bearing, magnetic coupling, magnetic-gear etc.Be limited to the restriction of magnetic material, Drive Technology slower development, until nineteen eighty-three, Chinese invention high performance permanent magnetic materials neodymium iron boron, magnetic drive product is just rapidly developed application.
Magnetic coupling has driven product independent as since the development of independent branch from magnetic drive pump isodynamic, there is panoramic product, but be all confined to the reason of configuration aspects, can only be confined in the dynamic equipment dynamic transmission application in middle low power, medium and small moment of torsion interval, and expensive.Primary air fan (the 6000KW of picture thermal power plant, 1496r/min), secondary air fan (4550KW, 1495r/min), coal crusher (1200KW, 490r/min) and steel mill, mining site the dynamic equipment such as large fan, prior art and product all cannot meet practical application request.
Energy-saving and emission-reduction are current active demands.Dynamic device energy conservation, has variable-frequency speed-adjusting energy-saving and grooved cam mechanism speed governing magnetic coupling variable speed energy saving at present more efficiently.Frequency converter is shorter for useful life, and adaptive capacity to environment is poor, and take up an area space greatly, maintenance needs is high, and high voltage converter failure rate is then higher, poor reliability.Having carried out at present grooved cam mechanism speed governing magnetic coupling (cartridge type and disc type) that applies because of reasons in structure is of limited application, and expensive.Liquid cooling grooved cam mechanism speed governing disc electromagnetic coupling can only be applied in the dynamic equipment of below 2500KW moderate rotation reluctantly, and air-cooled grooved cam mechanism speed governing disc electromagnetic coupling can only be applied in the dynamic equipment of below 350KW moderate rotation reluctantly.Cartridge type magnetic coupling is then poorer, and liquid cooling speed governing product can only be applied in the dynamic equipment of below 800KW moderate rotation reluctantly, and security reliability is not high.
Summary of the invention
The present invention focuses on the technical method finding the speed governing of a kind of disc electromagnetic coupling, the two large serial G type ball-screw electric speed regulation disc type magnetic coupler of extending out along with this technical method---air-cooled G type ball-screw electric speed regulation disc electromagnetic coupling (FTG series), liquid cooling G type ball-screw electric speed regulation disc electromagnetic coupling (YTG series).
Accompanying drawing explanation
Fig. 1 is air-cooled G type ball-screw electric speed regulation disc electromagnetic coupling (FTG series), and Fig. 9 is liquid cooling G type ball-screw electric speed regulation disc electromagnetic coupling (YTG series).
G type ball-screw electric speed regulation disc electromagnetic coupling, all comprise following several part: number in the figure 1 and 5 is inductive disks, and 2 and 4 is magnetic patch fixed disk, 3 is gear drive ball-screw speed adjusting gear, 6 is electric speed regulation specialized high-speed swivel coupling, 7 is motor stator, and 8 is rotor, and 9 is synchronous disk, 10 is expansion set, power transmission shaft centered by 11,19 is support, and 23 is flange shaft sleeve.
In two large serial G type ball-screw electric speed regulation disc electromagnetic couplings, all inductive disks are connect by caging bolt and form external rotor, all magnetic patch fixed disks are connected on center driving axle, form internal rotor together with inner rotor motor external gear drive ball-screw speed adjusting gear.The internal rotor of electric speed regulation specialized high-speed swivel coupling and motor stator synchronous axial system, geo-stationary, the external rotor of electric speed regulation specialized high-speed swivel coupling and support are fixed and are kept static.The external rotor of electric speed regulation specialized high-speed swivel coupling connects external power source by bidirectional switch.Bidirectional switch controls the sense of current entering motor, thus change motor internal rotor turns to the relative of center driving axle.Motor internal rotor driven gear axle rotates, gear drive makes screw turns, screw turns, feed screw nut (being fixed together with magnetic patch fixed disk) moves vertically, thus the distance (magnetic Field Coupling gap) changed between magnetic patch fixed disk and inductive disks, to reach the object (change in magnetic Field Coupling gap will cause the change of magnetic coupling inner and outer rotors slip, the namely change of input and output rotating speed) of variable speed energy saving.
Fig. 2, Figure 3 shows that as inner rotor motor external gear drive ball-screw speed adjusting gear, spacing back-up ring 3-13 is used for ensureing that synchronizing bar 3-11 axial endplay can not occur, 3-12 is fine setting spring, and 3-1 is ball-screw assembly, and 3-3 is the retainer of synchronizing bar and leading screw.Label 7 is motor stator (outer surface have groove be used for extracting power supply cord), 8 is rotor, synchronous disk 9 and expansion set 10 ensure motor stator 7 and center driving axle 11 synchronous axial system (geo-stationary), rotor 8 and gear shaft 3-7 holding screw 13 are fixed together, synchronous axial system.3-6 is gear, and leading screw interference fit.Ball-screw and motor all can be produced in batches by specialized factory.
Figure 4 shows that magnetic patch fixed disk 2, know and given expression to powerdriven mode---semiaxis, also show the distribution situation of magnetic patch.
Figure 5 shows that magnetic patch fixed disk 4, its can not directly and center driving axle 11 carry out power transmission, but can slide axially, magnetic patch fixed disk 4 relies on three synchronizing bar 3-11 to carry out driving coupling, also show the distribution situation of magnetic patch.
Fig. 6, Fig. 7, Figure 8 shows that electric speed regulation specialized high-speed swivel coupling, adopt modular series connection structure, can to connect any passage, it is triple channel shown in Fig. 6, its internal rotor and external rotor assembly an entirety, are fixed on motor stator with dog screw, its internal rotor and motor stator synchronous axial system, its external rotor transfixion, to connect external power source.Sealing ring 6-16,6-17 can adopt the material such as tungsten carbide, graphite at two ends, 6-3,6-4,6-10 of middle live wire turnover part can adopt electrical insulating material, 6-19 adopts contact material, 6-18 adopts electrical insulating material to inlay the combining structure of contact material, 6-11 is spring, be used for equilibrium contact pressure, the guide finger 6-12 at spring place plays guide and limit effect to spring, and when preventing high speed rotary, spring lost efficacy under centrifugal action.
Figure 10, Figure 11 shows that liquid cooling G type ball-screw electric speed regulation disc electromagnetic coupling (YTG series) shell and inner high speed rotary black box, sealing ring 30-3, 30-4, 30-6, 30-7, 31-3, 31-4, 31-6, 31-7 is movable sealing, difference according to cooling fluid can select tungsten carbide, the materials such as graphite, spring 30-11, 31-11 is used for the wearing and tearing of compensation sealing ring, balanced seal pressure, the guide finger 30-2 at spring place, 31-2 plays guide and limit effect to spring, when preventing high speed rotary, spring lost efficacy under centrifugal action, alignment pin 30-1, 30-10, 31-1, 31-10 and guide finger 30-2, 31-2 combination plays the role of positioning, 30-5, 30-8, 30-9, 31-5, 31-8, 31-9 is static seal, enclose with O shape.
Figure 12 shows that FTG series magnetic coupling takes off the structural representation of inner two supports bearing, connect between power transmission shaft and adopt expansion set, other series also can be done like this, but this scheme only can be used on low year situation and axle alters very small situation, reason is as follows: inductive disks 1 and 5 forms external rotor by bolted on connection, magnetic patch fixed disk 2 and 4 and speed adjusting gear 3, motor stator 7, rotor 8, synchronous disk 9, expansion set 10 grade connects to form internal rotor by center driving axle, inner and outer rotors is not in contact with each other, but owing to being difficult to the depth of parallelism ensureing inductive disks and magnetic patch fixed disk during assembling, so alternate stress (effect of magnetic Field Coupling additional bending moment) can be caused to motor center axle bearing supporting place and supporting place of load transmission axle bearing, so that axle excessive wear was lost efficacy.In addition, the impact that axle is altered can cause bumpy running, can cause the accident time serious.Generally speaking, this kind of scheme will be cautious use of.
Figure 13 shows that a kind of concept type inner rotor motor external gear drive ball-screw speed governing magnetic coupling (motor adopts double-speed motor or frequency control motor), motor stator 7 transfixion, be fixed on support, rotor 8 and gear shaft 3-7 are fixed together by holding screw.During motor no power, rotor 8, gear, leading screw, magnetic patch fixed disk and center driving axle synchronous high-speed rotate.During speed governing, rely on the differential drive gear axle of rotor and center driving axle to rotate, gear drive drives screw turns, thus feed screw nut is moved vertically, changes magnetic Field Coupling gap.The maximum shortcoming of this kind of scheme is---during speed governing, motor stator winding can produce very large induced electromotive force, makes speed governing become very unstable.The maximum advantage of this kind of scheme is---structure is simple.
Embodiment
Each composition parts that G type ball-screw electric speed regulation disc type magnetic coupler comprises, modern industry manufacturing technology all can processing and manufacturing.Ball-screw, motor, magnetic patch, bearing all can be formed a complete production network by specialized vendor, other parts machine work, die forming, weld.
G type ball-screw electric speed regulation disc type magnetic coupler moves equipment as one, its finished product wants successful Application, following two conditions must be possessed: (1) power calibration---set up complete testboard bay (each power moment of torsion is interval), to complete the demarcation of tandem product.(2) dynamic balancing detects---and slewing must reach the requirement for dynamic balance of correlation standard, to reach necessary security reliability.

Claims (7)

1. the technical method of magnetic coupling external motor gear drive ball-screw speed governing---it is characterized in that electric speed regulation specialized high-speed swivel coupling and inner rotor motor external gear drive ball-screw speed adjusting gear Combination application, motor is placed in magnetic coupling rotor exterior.
2. the technical method of inner rotor motor external gear drive ball-screw speed adjusting gear speed governing---it is characterized in that inner rotor motor, gear and ball-screw Combination application, during access failure power supply, inner rotor motor stator, rotor, gear, ball-screw assembly and center driving axle synchronous rotary, geo-stationary, switch on power after switch, just relatively rotate between inner rotor motor rotor and stator (motor stator and center driving axle synchronous axial system), thus driven gear rotates, then screw turns is driven by gear drive, feed screw nut moves vertically, magnet fixed disk is driven to slide axially, thus the distance (magnetic Field Coupling gap) changed between magnet fixed disk and inductive disks, reach the object of variable speed energy saving.
3. the technical method of electric speed regulation specialized high-speed swivel coupling---electric speed regulation specialized high-speed swivel coupling is made up of internal rotor and external rotor two large divisions, external rotor transfixion, in order to connect external power source, internal rotor and center driving axle synchronous high-speed rotate, both geo-stationary, the current path of inner and outer rotors presses the principle of Electric contact theory.
4. utilize guide finger to carry out the technical method of control spring movement in high speed rotary sealing---be present in the hermetically-sealed construction of electric speed regulation specialized high-speed swivel coupling two ends employing and in the hermetically-sealed construction at liquid cooling G type ball-screw electric speed regulation disc electromagnetic coupling two ends.
5. the organization plan of air-cooled G type ball-screw electric speed regulation disc electromagnetic coupling (FTG series)---it is characterized in that electric speed regulation specialized high-speed swivel coupling, inner rotor motor external gear drive ball-screw speed adjusting gear.
6. the organization plan of liquid cooling G type ball-screw electric speed regulation disc electromagnetic coupling (YTG series)---it is characterized in that electric speed regulation specialized high-speed swivel coupling, inner rotor motor external gear drive ball-screw speed adjusting gear, high speed rotary hermetically-sealed construction between magnetic coupling inner and outer rotors and shell three.
7. utilize the conceptual speed regulating structure scheme of double-speed motor or the running of frequency control motor driven wheel transmitting balls leading screw speed adjusting gear---it is characterized in that electric machine external Direct driver gear shaft rotates, utilize the differential of gear shaft and center driving axle to impel gear drive to drive screw turns, thus make feed screw nut move (feed screw nut and magnet fixed disk, center driving axle synchronous axial system) vertically.
CN201410370498.0A 2014-07-22 2014-07-22 G type ball screw electric speed regulation disc type magnetic coupling Pending CN105281538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410370498.0A CN105281538A (en) 2014-07-22 2014-07-22 G type ball screw electric speed regulation disc type magnetic coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410370498.0A CN105281538A (en) 2014-07-22 2014-07-22 G type ball screw electric speed regulation disc type magnetic coupling

Publications (1)

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CN105281538A true CN105281538A (en) 2016-01-27

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107359776A (en) * 2016-05-10 2017-11-17 李启飞 Powered magnetic differential drive system
CN107659118A (en) * 2016-07-23 2018-02-02 李启飞 The very big load regulatable magnetic force differential mechanism of motorized adjustment
CN108574372A (en) * 2017-03-09 2018-09-25 李启飞 The adjustable induction type powered magnetic differential drive system of very big load
CN109120132A (en) * 2017-06-24 2019-01-01 李启飞 The very big load regulatable magnetic force differential mechanism of planetary roller screw type
CN109217624A (en) * 2017-06-29 2019-01-15 李启飞 Induction type powered magnetic differential drive system that the very big load of planetary roller screw type is adjustable
CN109217627A (en) * 2017-06-29 2019-01-15 李启飞 The very big load regulatable magnetic force differential drive system of planetary roller screw type

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102969867A (en) * 2012-11-05 2013-03-13 江苏大学 Magnetic governor with automatic transmission ability and speed governing method thereof
CN203166731U (en) * 2013-02-22 2013-08-28 天津吉玄节能技术有限公司 Transmission shaft multi-stage adjusting neodymium iron boron speed adjusting device
CN103532339A (en) * 2013-10-21 2014-01-22 苏州科睿特能源科技有限公司 Flexible power transmission device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102969867A (en) * 2012-11-05 2013-03-13 江苏大学 Magnetic governor with automatic transmission ability and speed governing method thereof
CN203166731U (en) * 2013-02-22 2013-08-28 天津吉玄节能技术有限公司 Transmission shaft multi-stage adjusting neodymium iron boron speed adjusting device
CN103532339A (en) * 2013-10-21 2014-01-22 苏州科睿特能源科技有限公司 Flexible power transmission device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107359776A (en) * 2016-05-10 2017-11-17 李启飞 Powered magnetic differential drive system
CN107659118A (en) * 2016-07-23 2018-02-02 李启飞 The very big load regulatable magnetic force differential mechanism of motorized adjustment
CN108574372A (en) * 2017-03-09 2018-09-25 李启飞 The adjustable induction type powered magnetic differential drive system of very big load
CN109120132A (en) * 2017-06-24 2019-01-01 李启飞 The very big load regulatable magnetic force differential mechanism of planetary roller screw type
CN109217624A (en) * 2017-06-29 2019-01-15 李启飞 Induction type powered magnetic differential drive system that the very big load of planetary roller screw type is adjustable
CN109217627A (en) * 2017-06-29 2019-01-15 李启飞 The very big load regulatable magnetic force differential drive system of planetary roller screw type

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