CN107078624A - F type ball-screw electric speed regulation disc type magnetic couplers - Google Patents

F type ball-screw electric speed regulation disc type magnetic couplers Download PDF

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Publication number
CN107078624A
CN107078624A CN201480078228.0A CN201480078228A CN107078624A CN 107078624 A CN107078624 A CN 107078624A CN 201480078228 A CN201480078228 A CN 201480078228A CN 107078624 A CN107078624 A CN 107078624A
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Prior art keywords
screw
speed
speed regulation
ball
rotor
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Pending
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CN201480078228.0A
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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 PCT/CN2014/000554 priority Critical patent/WO2015184564A1/en
Publication of CN107078624A publication Critical patent/CN107078624A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K51/00Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts

Abstract

A kind of F types ball-screw electric speed regulation disc type magnetic coupler is divided into two big series:Air-cooled F types ball-screw electric speed regulation disc electromagnetic coupling, the cold F types ball-screw electric speed regulation disc electromagnetic coupling of liquid.By using the distance between inner rotor motor ball-screw speed adjusting gear (3) regulation magnetic coupling inductive disks (1,5) and magnetic patch fixed disk (2,4), so as to realize a kind of energy-saving speed regulating of economically viable drive apparatus.

Description

F type ball-screw electric speed regulation disc type magnetic couplers
F type ball-screw electric speed regulation disc type magnetic coupler field
Power transmission, energy-saving and emission-reduction, dynamic equipment, magnetic drive.Background
It since human use is said 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 of magnetic drive product in the industry just emerges one after another, magnetic drive pump, magnetic bearing, magnetic coupling, magnetic-gear etc..It is limited to the restriction of magnetic material, Drive Technology develops slowly, until nineteen eighty-three, middle promulgated by the State Council
Book
High performance permanent magnetic materials neodymium iron boron is illustrated, magnetic drive product is just rapidly developed application.
Magnetic coupling is from power pump equimagnetic power drive product since the independent development as individual branch, there is panoramic product, but the reason of being all confined to configuration aspects, it can only be confined to middle low power, in the dynamic equipment dynamic transmission application in medium and small torque section, and the expensive primary air fan (6000KW as thermal power plant, 96r/min), secondary air fan (4550KW, 1495r/min), coal breaker (1200KW, 490r/min) and steel mill, the dynamic equipment such as the large fan of mining site, the prior art and product are all unable to satisfy practical application request.
Energy-saving and emission-reduction are current urgent needs.Dynamic device energy conservation more efficiently has variable-frequency speed-adjusting energy-saving and grooved cam mechanism speed regulation magnetic coupling variable speed energy saving at present.Frequency converter service life is shorter, and adaptive capacity to environment is poor, and space occupied is big, and maintenance needs are high, and high-voltage frequency converter failure rate is then higher, poor reliability.The grooved cam mechanism applied at present adjusts the speed magnetic coupling (cartridge type and disc type) because reasons in structure is of limited application, and expensive.Liquid cooling grooved cam mechanism speed regulation disc electromagnetic coupling can only be applied to reluctantly in the dynamic equipment of 2500KW or less moderate rotation, and air-cooled grooved cam mechanism speed regulation disc electromagnetic coupling can only be applied to reluctantly in the dynamic equipment of 350KW or less moderate rotation.Cartridge type magnetic coupling is then worse, and liquid cooling speed regulation product can only be applied to reluctantly in the dynamic equipment of 800KW or less moderate rotation, and security reliability is not high.
Summary of the invention
The present invention focuses on the technical method for finding a kind of disc electromagnetic coupling speed regulation, the two big series F type ball-screw electric speed regulation disc type magnetic couplers of extending out along with this technical method --- air-cooled F type ball-screw electric speed regulation disc electromagnetic coupling (FTF series), liquid cooling F type ball-screw electric speed regulation disc electromagnetic coupling (YTF series).
Detailed description of the invention Fig. 1 is air-cooled F type ball-screw electric speed regulation disc electromagnetic coupling (FTF series), and Figure 11 is liquid cooling F type ball-screw electric speed regulation disc electromagnetic coupling (YTF series).
F type ball-screw electric speed regulation disc electromagnetic coupling, all comprising following several parts: figure label 1 and 5 is inductive disks, and 2 and 4 be magnetic patch fixed disk, and 3 be ball-screw speed adjusting gear, 6 be electric speed regulation specialized high-speed swivel joint, 7 be motor stator, and 8 be rotor, and 9 be synchronous disk, 10 be expansion set, 11 be center transmission shaft, and 19 be bracket, and 23 be flange shaft sleeve.
In two big series F type ball-screw electric speed regulation disc electromagnetic couplings, all inductive disks form outer rotor by caging bolt connection, all magnetic patch fixed disks are connected on center driving axis and the external ball-screw speed adjusting gear of inner rotor motor forms internal rotor together.The internal rotor and motor stator of electric speed regulation specialized high-speed swivel joint rotate synchronously, opposing stationary, and outer rotor and the bracket fixation of electric speed regulation specialized high-speed swivel joint are remain stationary.The outer rotor of electric speed regulation specialized high-speed swivel joint connects external power supply by two-way switch.Two-way switch control enters the current direction of motor, to change the opposite steering of motor internal rotor and center driving axis.Motor internal rotor drives lead screw rotation, lead screw rotation, feed screw nut (and magnetic patch fixes slender and delicate be fixed together) is axially moveable, to change the distance between magnetic patch fixed disk and inductive disks (magnetic field coupling gap), to achieve the purpose that the variable speed energy saving (variation in magnetic field coupling gap, it will lead to the variation of magnetic coupling inner and outer rotors slip, that is, the variation of input and output revolving speed).
Fig. 2 show H direction view.
Fig. 3 show A- A section view, has clearly given expression to the position of three synchronizing bars.
Fig. 4 show magnetic patch fixed disk 2, has clearly given expression to powerdriven mode semiaxis one by one, has also shown the distribution situation of magnetic patch.
Fig. 5 show magnetic patch fixed disk 4, cannot directly and center driving axis 11 carries out power transmission, but can slide along center driving axis 11, and three synchronizing bar 3-3 of the dependence of magnetic patch fixed disk 4 carry out driving coupling, also shows the distribution situation of magnetic patch.
Fig. 6 is the external ball-screw speed adjusting gear of inner rotor motor, and limit stop ring 3-1 is used to guarantee that axial float will not occur for synchronizing bar 3-3, and 3- 2 is fine tuning spring, and 3- 4 is feed screw nut, and 3- 5 is lead screw, and 3-8 is synchronizing bar retainer.Label 7 is motor stator (outer surface has slot to be used to extracting power supply cord), 8 be rotor, synchronous disk 9 and expansion set 10 guarantee that motor stator 7 and center driving axis 11 rotate synchronously (opposing stationary), rotor 8 and lead screw 3-5 holding screw 13 are fixed together, and rotate synchronously.Ball-screw and motor can be produced in batches by specialized factory.
Fig. 7, Fig. 8, Fig. 9, Figure 10 show electric speed regulation specialized high-speed swivel joint, using modular series connection structure, can connect any channel, it is triple channel shown in Fig. 7, Fig. 8, internal rotor is coupled each section by bolt 6- 29, an entirety is then assemblied with the outer rotor of swivel joint, it is fixed on motor stator with positioning screw again, its internal rotor and motor stator rotate synchronously, and outer rotor is stationary, to connect external power supply.The materials such as tungsten carbide, graphite can be used in both ends sealing ring 6-20,6- 21, electrically insulating material can be used in 6-5,6-7,6-8,6-24,6-25 of intermediate live wire access portion, 6- 22 uses contact material, 6-23 inlays the composite structure of contact material using electrically insulating material, 6- 14 is spring, is used to equilibrium contact pressure Power, the guide pin 6-15 at spring play guide and limit to spring, prevent spring when revolution at a high speed from failing under the action of the centrifugal force.Figure 12, Figure 13 show liquid cooling F type ball-screw electric speed regulation disc electromagnetic coupling (YTF series) shell and internal revolution at a high speed seal assembly, sealing ring 36-3, 36-4, 36-6, 36-7, 41-3, 41-4, 41-6, 41- 7 is dynamic sealing, tungsten carbide can be selected according to the difference of coolant liquid, the materials such as graphite, spring 36-11, 41- 11 is used to the abrasion of compensation sealing ring, balanced seal pressure, guiding europium 36-2 at spring, 41- 2 plays guide and limit to spring, prevent spring when revolution at a high speed from failing under the action of the centrifugal force, positioning pin 36 1, 36-10, 41-1, 41-10 and guide pin 36-2,41-2 combination play the role of positioning, and 36-5,36-8,36-9,41-5,41-8,41-9 are static seal, with 0 shape circle.
Figure 14, Figure 15 are inductive disks, and raised blade is distributed in disk, has helped heat dissipation.When unknown device rotation direction, shape shown in Figure 14, which can be selected, such as known device rotation direction can be selected streamline shape shown in figure 15, has increased heat dissipation capacity and has reduced flow-disturbing noise.
Figure 16 show the structural representation that FTF series magnetic coupling removes internal two supports bearing, connection uses expansion set between transmission shaft, other series can also be done so, but this scheme can only be used in low load situation and axis alters very small situation, the reason is as follows that: inductive disks 1 and 5 form outer rotor by bolted on connection, the entire price fixing 2 and 4 of magnetic patch and speed adjusting gear 3, motor stator 7, rotor 8, synchronous disk 9, expansion sets 10 etc. form internal rotor by center driving axis connection, inner and outer rotors are not in contact with each other, but it is difficult to ensure that the depth of parallelism of inductive disks and magnetic patch fixed disk when due to assembly, so can be caused alternate stress (effect of magnetic field coupling additional bending moment) at motor center axle bearing bearing and at load transmission axle bearing bearing, so that axis excessive wear Failure.In addition, the influence that axis is altered will cause bumpy running, accident will cause when serious.Generally speaking, such scheme will be used with caution.
Figure 17 show a kind of external ball-screw speed regulation magnetic coupling of concept type inner rotor motor (motor is using double-speed motor or frequency control motor), motor stator 7 is stationary, it is fixed on bracket, rotor 8 and lead screw are fixed together by holding screw.When motor no power, rotor 8, lead screw, magnetic patch fixed disk and center driving Zhou Tong Walk high speed rotation.When speed regulation, the axial movement of feed screw nut is realized by the differential of rotor and center driving axis.Such scheme it is maximum the disadvantage is that --- when speed regulation, motor stator winding can generate very big induced electromotive force, make speed regulation become very unstable.Such scheme biggest advantage is --- structure is simple.
Specific formula
Each composition components that F type ball-screw electric speed regulation disc type magnetic coupler is included, the processable manufacture of modern industry manufacturing technology.Ball-screw, motor, magnetic patch, bearing can be formed a complete production network by specialized vendor, other components machinings, die forming, welding.
F type ball-screw electric speed regulation disc type magnetic coupler is as a kind of dynamic equipment, its finished product is to successful application, must have following two condition-(1) power calibration --- complete testboard bay (each power torque section) is established, to complete seriation production The calibration of 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 present invention focus on look for!A kind of technical method of magnetic coupling speed regulation of f, the two air-cooled F type ball-screw electric speed regulation disc electromagnetic couplings of big series F type ball-screw electric speed regulation disc type magnetic coupler one of extending out (FTF series), liquid cooling F type ball-screw electric speed regulation disc electromagnetic coupling (YTF series) along with this technical method.Claim is as follows:
    1, the technical method of magnetic coupling external motor ball-screw speed regulation --- it is characterized in that electric speed regulation specialized high-speed swivel joint and the external ball-screw speed adjusting gear combined application of inner rotor motor, motor are placed in magnetic coupling rotor exterior.
    2, the technical method one of the external ball-screw speed adjusting gear speed regulation of inner rotor motor is it is characterized in that inner rotor motor and ball-screw combined application, when access failure power supply, inner rotor motor stator, rotor, ball-screw component and center driving axis synchronous rotary, it is opposing stationary, after powering on switch, just (motor stator and center driving axis rotate synchronously) is relatively rotated between inner rotor motor rotor and stator, to drive lead screw to rotate, lead screw rotation, feed screw nut is axially moveable, magnet fixed disk is driven to slide along center driving axis, to change the distance between magnet fixed disk and inductive disks (magnetic field coupling gap), achieve the purpose that variable speed energy saving.
    3, the technical method of electric speed regulation specialized high-speed swivel joint --- electric speed regulation specialized high-speed swivel joint is made of internal rotor and outer rotor two large divisions, outer rotor is stationary, to connect external power supply, internal rotor and center driving Zhou Tong Walk high-speed rotation, the two is opposing stationary, and the current path of inner and outer rotors presses the principle of Electric contact theory.
    4, the mobile technical method of spring is controlled using guide pin in revolution at a high speed sealing --- it is present in electric speed regulation specialized high-speed swivel joint both ends and adopts in the sealing structure of Xiang and in the sealing structure at liquid cooling F type ball-screw electric speed regulation disc electromagnetic coupling both ends.
    5, the organization plan of air-cooled F type ball-screw electric speed regulation disc electromagnetic coupling (FTF series) --- it is characterized in that the external ball-screw speed adjusting gear of electric speed regulation specialized high-speed swivel joint, inner rotor motor.
    6, organization plan ^ ~ ~ ^ feature of liquid cooling F type ball-screw electric speed regulation disc electromagnetic coupling (YTF series) is the close envelope knot Ju of revolution at a high speed between electric speed regulation specialized high-speed swivel joint, the external ball-screw speed adjusting gear of inner rotor motor, magnetic coupling inner and outer rotors and shell three.
    7, the conceptual speed regulating structure scheme of ball-screw operating is moved using double-speed motor or frequency control motor --- it is moved it is characterized in that electric machine external directly drives ball-screw, promotes feed screw nut movement using the differential of lead screw and center driving axis (feed screw nut and magnet fixed disk, center driving axis rotate synchronously).
CN201480078228.0A 2014-06-04 2014-06-04 F type ball-screw electric speed regulation disc type magnetic couplers Pending CN107078624A (en)

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Application Number Priority Date Filing Date Title
PCT/CN2014/000554 WO2015184564A1 (en) 2014-06-04 2014-06-04 F-model electric speed regulation disc-type magnetic coupler having ball-screw

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CN107078624A true CN107078624A (en) 2017-08-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109424498A (en) * 2017-09-04 2019-03-05 李启飞 The very big load of pivoting support type is adjustable wind-heat device

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DE3246122A1 (en) * 1982-12-13 1984-06-14 Heinz 4350 Recklinghausen Schiweck Magnetic transmission
CN2681877Y (en) * 2003-11-18 2005-03-02 上海人造板机器厂有限公司 Mechanical sealing device for defibrator
CN102624198A (en) * 2012-04-20 2012-08-01 林贵生 Permanent magnetic coupling transmission, braking or load device with cooling and lubricating device
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
CN103401398A (en) * 2013-08-06 2013-11-20 大连交通大学 Magnetic coupler
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

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US6682430B2 (en) * 2001-03-15 2004-01-27 Magnadrive Corporation Adjustable magnetic coupler
CN201490870U (en) * 2009-08-11 2010-05-26 林贵生 Permanent magnet coupling driving and speed-adjusting device of driving shaft capable of adjusting magnetic torque
CN101997392B (en) * 2009-08-11 2013-01-16 余亚莉 High-efficiency boiler-grate permanent-magnet coupling capable of adjusting electromagnetic torque
WO2014012228A1 (en) * 2012-07-18 2014-01-23 龙口中宇汽车风扇离合器有限公司 Continuous speed adjustment apparatus, control method thereof, and fan clutch and water pump using such apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246122A1 (en) * 1982-12-13 1984-06-14 Heinz 4350 Recklinghausen Schiweck Magnetic transmission
CN2681877Y (en) * 2003-11-18 2005-03-02 上海人造板机器厂有限公司 Mechanical sealing device for defibrator
CN102624198A (en) * 2012-04-20 2012-08-01 林贵生 Permanent magnetic coupling transmission, braking or load device with cooling and lubricating device
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
CN103401398A (en) * 2013-08-06 2013-11-20 大连交通大学 Magnetic coupler
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109424498A (en) * 2017-09-04 2019-03-05 李启飞 The very big load of pivoting support type is adjustable wind-heat device

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