CN105990992A

CN105990992A - 523-type ball-screw electric speed regulation disk-type magnetic coupler

Info

Publication number: CN105990992A
Application number: CN201510078753.9A
Authority: CN
Inventors: 李启飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-03
Filing date: 2015-02-03
Publication date: 2016-10-05

Abstract

The invention discloses a 523-type ball-screw electric speed regulation disk-type magnetic coupler, which relates to the field of power transmission, energy conservation, emission reduction, rotating equipment and magnetic driving. An outer rotor motor external gear transmission ball screw speed regulation mechanism and a high-speed rotary conductive joint (or a high-speed rotary joint specially for electric speed regulation) are used for forming a speed regulation system. Two types: an air-cooled 523-type ball-screw electric speed regulation disk-type magnetic coupler (FT523) and a liquid-cooled 523-type ball-screw electric speed regulation disk-type magnetic coupler (YT523) are divided. Thus, an economical and feasible method is found out for speed regulation and energy conservation of the rotating equipment.

Description

523 type ball-screw electric speed regulation disc type magnetic coupler

Technical field

Power transmission, energy-saving and emission-reduction, dynamic equipment, magnetically-actuated.

Background technology

From the beginning of human use ground Magnetic driving invention compass, the research on utilization of magnetic field energy the most never stopped.Along with existing For the development of theory of magnetism, the application in the industry of magnetically-actuated product just emerges in an endless stream, magnetic drive pump, magnetic bearing, magnetic force coupling Clutch, magnetic-gear etc..Being limited to the restriction of magnetic material, Drive Technology slower development, until nineteen eighty-three, middle promulgated by the State Council Understanding high performance permanent magnetic materials neodymium iron boron, magnetically-actuated product is just rapidly developed application.

Magnetic coupling since the development of independent conduct single branch, has occurred in that shape shape from magnetic drive pump isodynamic driving product The product of color color, but be all confined to the reason of configuration aspects, the dynamic equipment that can only be confined to middle low power, medium and small moment of torsion interval moves In power transmission application, and expensive.As the primary air fan (6000KW, 1496r/min) of thermal power plant, overfire air fan (4550KW, 1495r/min), coal breaker (1200KW, 490r/min) and steel mill, the dynamic equipment such as large fan of mining site, prior art and Product all cannot meet practical application request.

Energy-saving and emission-reduction are current urgent needss.Dynamic device energy conservation, has variable-frequency speed-adjusting energy-saving and grooved cam machine the most efficiently Structure speed governing magnetic coupling variable speed energy saving.Converter is shorter for service life, and adaptive capacity to environment is poor, takes up an area space greatly, safeguards and need Asking high, high voltage converter fault rate is the highest, poor reliability.Carry out the grooved cam mechanism speed governing magnetic coupling (cylinder applied at present Formula and disc type) it is of limited application because of reasons in structure, and expensive.Ye Leng grooved cam mechanism speed governing disc electromagnetic coupling can only be exerted oneself Being applied to by force in the dynamic equipment of below 2500KW moderate rotation, air-cooled grooved cam mechanism speed governing disc electromagnetic coupling can only be applied to reluctantly In the dynamic equipment of below 350KW moderate rotation.Cartridge type magnetic coupling is the most worse, liquid cool tone speed product can only be applied to reluctantly 800KW with In the dynamic equipment of lower moderate rotation, and security reliability is the highest.

Summary of the invention

The present invention focuses on the technical method finding a kind of disc electromagnetic coupling speed governing, two big series of extending out along with this technical method The air-cooled 523 type ball-screw electric speed regulation disc type magnetic coupler of 523 type ball-screw electric speed regulation disc type magnetic coupler (FT523 series), the cold 523 type ball-screw electric speed regulation disc type magnetic coupler of liquid (YT523 series).

Accompanying drawing explanation

Fig. 1 is air-cooled 523 type ball-screw electric speed regulation disc type magnetic coupler (FT523 series), the cold 523 type ball wires of liquid Thick stick electric speed regulation disc type magnetic coupler (YT523 series) adds casing, and coolant is passed in and out by pipeline on shell, forced fluid Cold.

523 type ball-screw electric speed regulation disc type magnetic coupler, all comprise following several part: in figure, label 1 and 5 is sensing Dish assembly, 2 and 4 is magnetic piece fixed disk assembly, and 3 is ball-screw speed adjusting gear, and 6 is that at a high speed revolution conductive contact is (or electronic Speed governing specialized high-speed swivel coupling), 7 is motor stator, and 8 is rotor, power transmission shaft centered by 11, and 19 is support, 23 For flange shaft sleeve.

In two the most serial 523 type ball-screw electric speed regulation disc type magnetic coupler, ball-screw speed adjusting gear 3 and external rotor electric Machine composition external rotor electric machine external ball-screw speed adjusting gear, all of inductive disks assembly is formed outer rotor by caging bolt connection, All of magnetic piece fixed disk component string is associated on center driving axle, forms together with ball-screw speed adjusting gear external with external rotor electric machine Internal rotor.Turn round at a high speed slip ring and the rotor synchronous axial system of conductive contact, geo-stationary, turn round at a high speed the electricity of conductive contact Brush and support keep geo-stationary.The brush of revolution conductive contact connects external power source at a high speed.Two-way switch controls to enter motor The sense of current, thus change motor outer rotor and turn to the relative of center driving axle.Motor outer rotor drives ball-screw assembly, Make rotation motion be in line slip, drive magnetic piece fixed disk assembly to slide along center driving axle, thus change magnetic piece fixed disk group Distance (magnetic field coupling gap) between part and inductive disks assembly, with reach variable speed energy saving purpose (change of magnetic field coupling gap, The change of magnetic coupling inner and outer rotors slip, the namely change of input and output rotating speed will be caused).

Fig. 2 show A-A section view, has clearly given expression to the position of three synchronizing bars.

Fig. 3 show magnetic piece fixed disk assembly 2, has clearly given expression to powerdriven mode semiaxis, also show magnetic piece Distribution situation.

Fig. 4 show magnetic piece fixed disk assembly 4, and it can not directly and center driving axle 11 carries out power transmission, Dan Keyan center Power transmission shaft 11 slides, and magnetic piece fixed disk assembly 4 relies on three synchronizing bar 3-3 to carry out driving coupling, also show magnetic piece Distribution situation.

Fig. 5 is ball-screw speed adjusting gear, and spacing back-up ring 3-1 is used for ensureing that synchronizing bar 3-3 will not occur axial float, and 3-2 is Fine setting spring, 3-4 is feed screw nut, and 3-5 is leading screw, and 3-8 is synchronizing bar retainer.

Fig. 6 show revolution conductive contact at a high speed, uses modular construction, and the quantity of slip ring determines as required, shown in figure Being three slip rings (can be six or the most individual), connect three of the wires, adapter ring 6-2, overcoat 6-7, overcoat 6-1 adopt With electrically insulating material, 6-5 is brush, and 6-4 is slip ring (being embedded in overcoat 6-1), and 6-8 (is used for putting down for fine setting spring Weighing apparatus contact pressure), 6-3 is wire, and 6-9 is bearing.Slip ring, external external power source is connect in brush.Slip ring 6-4 is embedded in anti- Inside sheath 6-1, it is fixed on rotor 8.Brush 6-5 is assemblied in insulant inside and keeps geo-stationary with support, Rely on the impact of bearing 6-9 isolation rotor 8 high speed rotating.At a high speed revolution conductive contact is using brush and slip ring as dynamically connecing Touch, it is also possible to fill counter to brush and slip ring, by connecing brush in slip ring, external external power source.

Fig. 7, Fig. 8 show inductive disks, protruding blade are distributed, to help heat radiation in card.During unknown device rotation direction, can be selected for Shape shown in Fig. 7, such as known device rotation direction, can be selected for the streamline shape shown in Fig. 8, to increase heat dissipation capacity and to reduce flow-disturbing and make an uproar Sound.When heat dissipation capacity is enough, inductive disks uses square position, removes protruding blade, to simplify manufacturing process.

Fig. 9 show FT523 series magnetic coupling and takes off the structural representation of internal two supports bearing, couples employing swollen between power transmission shaft Set, other series also can do so, but this scheme only can be used on low load situation and axle alters the most small situation, and reason is as follows: Inductive disks assembly 1 and 5 is formed outer rotor by bolted on connection, magnetic piece fixed disk assembly 2 and 4 and ball-screw speed adjusting gear 3, Motor stator 7, rotor 8 etc. are connected by center driving axle and form internal rotor, and inner and outer rotors is not in contact with each other, but due to assembling Time it is difficult to ensure that the depth of parallelism of inductive disks assembly and magnetic piece fixed disk assembly, so can be at motor center axle bearing supporting and load Alternate stress (effect of magnetic field coupling additional bending moment) is caused, so that axle excessive wear was lost efficacy at transmission shaft bearing supporting.Additionally, The impact that axle is altered can cause bumpy running, can cause the accident time serious.Generally speaking, this kind of scheme to be cautious use of.

Figure 10, Figure 11, Figure 12, Figure 13 show electric speed regulation specialized high-speed swivel coupling, use modular series connection structure, Can connect any passage, be triple channel shown in Figure 10, Figure 11, its internal rotor is connect each several part by bolt 6-29, then and The outer rotor of swivel coupling assemblies an entirety, then is fixed on rotor with location screw, and its internal rotor and motor turn Sub-synchronous axial system, its outer rotor transfixion, to connect external power source.Two ends sealing ring 6-20,6-21 can use tungsten carbide, The materials such as graphite, 6-5,6-7,6-8,6-24,6-25 of middle live wire access portion can use electrically insulating material, 6-22 Using contact material, 6-23 uses electrically insulating material to inlay the combinative structure of contact material, and 6-14 is spring, is used for balancing Contact pressure, spring is played guide and limit effect by the guide finger 6-15 at spring, and when preventing from turning round at a high speed, spring is at centrifugal action Lower inefficacy.

Electric speed regulation specialized high-speed swivel coupling may be substituted for turning round conductive contact, electric speed regulation specialized high-speed swivel coupling at a high speed Than revolution conductive contact at a high speed, there is more preferable waterproof and dustproof and explosion-proof performance, but its structure is complicated, manufactures difficulty, economy Difference.

Detailed description of the invention

What 523 type ball-screw electric speed regulation disc type magnetic coupler were comprised respectively forms parts, modern industry manufacturing technology Processing and manufacturing.Ball-screw, motor, magnetic piece, bearing all can be formed a complete production network by specialized vendor, the machining of other parts, mould Tool shapes, welds.

523 type ball-screw electric speed regulation disc type magnetic coupler move equipment as one, and its finished product wants successful Application, it is necessary to tool Standby following two condition: (1) power calibration sets up complete testboard bay (each power moment of torsion is interval), to complete seriation The demarcation of product.(2) dynamic balancing detection slewing must reach the requirement for dynamic balance of correlation standard, so that reach must The security reliability wanted.

Claims

Its feature of organization plan of the most air-cooled 523 type ball-screw electric speed regulation disc type magnetic coupler (FT523 series) It is external rotor electric machine external ball-screw speed adjusting gear, at a high speed revolution conductive contact (or electric speed regulation specialized high-speed swivel coupling).
2. its feature of organization plan of the cold 523 type ball-screw electric speed regulation disc type magnetic coupler of liquid (YT523 series) It is external rotor electric machine external ball-screw speed adjusting gear, at a high speed revolution conductive contact (or electric speed regulation specialized high-speed swivel coupling), Adding casing, forced fluid is cold.
3., according to 523 type ball-screw electric speed regulation disc type magnetic coupler described in claim 1, claim 2, it is special Levy technical method at a high speed revolution conductive contact (or the special height of electric speed regulation being to use magnetic coupling external motor ball-screw speed governing Speed swivel coupling) and external rotor electric machine external ball-screw speed adjusting gear combination application, motor is placed in magnetic coupling rotor exterior.
4., according to 523 type ball-screw electric speed regulation disc type magnetic coupler described in claim 1, claim 2, it is special Levy technical method external rotor electric machine and the ball-screw combination being to use external rotor electric machine external ball-screw speed adjusting gear speed governing Application, during access failure power supply, motor stator for outer rotator, rotor, ball-screw assembly and center driving axle synchronous rotary, relatively Static, after the switch that switches on power, just relatively rotate between External rotor electric machine rotor and stator (motor stator and center driving axle with Step rotates), thus drive ball-screw assembly, make rotation motion be in line slips, drive magnetic piece fixed disk is along center driving axle Slide, thus change the distance (magnetic field coupling gap) between magnetic piece fixed disk and inductive disks, reach the purpose of variable speed energy saving.
5., according to 523 type ball-screw electric speed regulation disc type magnetic coupler described in claim 1, claim 2, it is special Levying is the technical method using at a high speed revolution conductive contact using brush and slip ring as dynamic Contact, connects slip ring, outward in brush Connecing external power source, slip ring is fixed on rotor, and with rotor synchronous rotary, brush is assemblied in insulant and is internally formed Stationary parts, it is also possible to fill counter to brush and slip ring, by connecing brush in slip ring, external external power source.
6., according to 523 type ball-screw electric speed regulation disc type magnetic coupler described in claim 1 and claim 2, it is special Levy be the technical method electric speed regulation specialized high-speed swivel coupling using electric speed regulation specialized high-speed swivel coupling by internal rotor and Outer rotor two large divisions forms, and outer rotor transfixion, in order to connect external power source, internal rotor and rotor synchronous high-speed turn Dynamic, both geo-stationary, the current path of inner and outer rotors is by the principle of Electric contact theory.