CN105896896A

CN105896896A - M-type ball screw electric speed regulation disc magnetic coupler

Info

Publication number: CN105896896A
Application number: CN201410747823.0A
Authority: CN
Inventors: 李启飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-03
Filing date: 2014-12-03
Publication date: 2016-08-24

Abstract

An M-type ball screw electric speed regulation disc magnetic coupler provided by the invention belongs to the fields of power transmission, energy saving and emission reduction, mechanical equipment and magnetic force actuation. A speed regulation system consisting of an internal rotor motor external ball screw speed control mechanism and a high speed revolution conductive contact comprises two types: an air cooling M-type ball screw electric speed regulation disc magnetic coupler (FTM) and a liquid cooling M-type ball screw electric speed regulation disc magnetic coupler (YTM). The M-type ball screw electric speed regulation disc magnetic coupler is able to find an economically feasible method for the speed regulation and the energy saving of the mechanical equipment.

Description

M 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, and extend out two big series M along with this technical method Type ball-screw electric speed regulation disc type magnetic coupler air-cooled M type ball-screw electric speed regulation disc type magnetic coupler (FTM Series), liquid cold M type ball-screw electric speed regulation disc type magnetic coupler (YTM series).

Accompanying drawing explanation

Fig. 1 is air-cooled M type ball-screw electric speed regulation disc type magnetic coupler (FTM series), and liquid cold M type ball-screw is electronic Speed governing disc type magnetic coupler (YTM series) adds casing, and coolant is passed in and out by pipeline on shell, and forced fluid is cold, at a high speed Revolution conductive contact is placed in housing exterior.

M type ball-screw electric speed regulation disc type magnetic coupler, all comprises following several part: in figure, label 1 and 5 is inductive disks, 2 and 4 is magnetic piece fixed disk, and 3 is ball-screw speed adjusting gear, and 6 is to turn round at a high speed conductive contact, and 7 is motor stator, and 8 are Rotor, 9 is synchronous disk, and 10 is expansion set, power transmission shaft centered by 11, and 19 is support, and 23 is flange shaft sleeve.

In two big series M type ball-screw electric speed regulation disc type magnetic coupler, all of inductive disks is made up of caging bolt connection Outer rotor, all of magnetic piece fixed disk is connected on center driving axle, together with ball-screw speed adjusting gear external with inner rotor motor Composition internal rotor.Turn round at a high speed slip ring and the motor stator synchronous axial system of conductive contact, geo-stationary, at a high speed revolution 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 electricity The sense of current of machine, thus change motor internal rotor and turn to the relative of center driving axle.Motor internal rotor drives screw turns, Screw turns, feed screw nut (being fixed together with magnetic piece fixed disk) is axially moveable, thus changes magnetic piece fixed disk and sensing Distance (magnetic field coupling gap) between dish, to reach the purpose of variable speed energy saving, (change of magnetic field coupling gap will cause magnetic coupling The change of inner and outer rotors slip, the namely change of input and output rotating speed).

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 2, has clearly given expression to powerdriven mode semiaxis, also show dividing of magnetic piece Cloth situation.

Fig. 4 show magnetic piece fixed disk 4, and it can not directly and center driving axle 11 carries out power transmission, but can be along center driving Axle 11 slides, and magnetic piece fixed disk 4 relies on three synchronizing bar 3-3 to carry out driving coupling, also show the distribution situation of magnetic piece.

Fig. 5 is inner rotor motor external 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, 3-2 is fine setting spring, and 3-4 is feed screw nut, and 3-5 is leading screw, and 3-8 is synchronizing bar retainer.Label 7 is Motor stator (outer surface has groove for extracting power supply cord), 8 is rotor, and synchronous disk 9 and expansion set 10 ensure motor stator 7 It is fixed together with center driving axle 11 synchronous axial system (geo-stationary), rotor 8 and leading screw 3-5 holding screw 13, Synchronous axial system.Ball-screw and motor all can be produced in batches by specialized factory.

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 motor stator 7.Brush 6-5 is assemblied in insulant inside and keeps geo-stationary with support, Rely on the impact of bearing 6-9 isolation motor stator 7 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 is distributed, has helped 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, has increased heat dissipation capacity and has reduced 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 FTM series magnetic coupling and takes off the structural representation of internal two supports bearing, couples and use expansion set between power transmission shaft, 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: sensing Dish 1 and 5 is formed outer rotor by bolted on connection, magnetic piece fixed disk 2 and 4 and speed adjusting gear 3, motor stator 7, rotor 8, Synchronous disk 9, expansion set 10 etc. are connected by center driving axle and form internal rotor, and inner and outer rotors is not in contact with each other, but are difficult to during due to assembling Ensure the depth of parallelism of inductive disks and magnetic piece fixed disk, so can support with load transmission axle bearing at motor center axle bearing supporting Place causes alternate stress (effect of magnetic field coupling additional bending moment), so that axle excessive wear was lost efficacy.Additionally, the impact meeting that axle is altered Cause bumpy running, can cause the accident time serious.Generally speaking, this kind of scheme to be cautious use of.

Detailed description of the invention

What M type ball-screw electric speed regulation disc type magnetic coupler was comprised respectively forms parts, and modern industry manufacturing technology all can add Work manufactures.Ball-screw, motor, magnetic piece, bearing all can be formed a complete production network by specialized vendor, the machining of other parts, mould Shape, weld.

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

Claims

The organization plan of the most air-cooled M type ball-screw electric speed regulation disc type magnetic coupler (FTM series) is characterized in that Inner rotor motor external ball-screw speed adjusting gear, at a high speed revolution conductive contact.
2. the organization plan of liquid cold M type ball-screw electric speed regulation disc type magnetic coupler (YTM series) is characterized in that Inner rotor motor external ball-screw speed adjusting gear, at a high speed revolution conductive contact, add casing, and forced fluid is cold.
3. according to the M type ball-screw electric speed regulation disc type magnetic coupler described in claim 1, claim 2, its feature It is technical method revolution conductive contact and the external ball of inner rotor motor at a high speed using magnetic coupling external motor ball-screw speed governing Leading screw speed adjusting gear combination application, motor is placed in magnetic coupling rotor exterior.
4. according to the M type ball-screw electric speed regulation disc type magnetic coupler described in claim 1, claim 2, its feature It is to use the technical method inner rotor motor of inner rotor motor external ball-screw speed adjusting gear speed governing and ball-screw combination to answer With, during access failure power supply, inner rotor motor stator, rotor, ball-screw assembly and center driving axle synchronous rotary, the most quiet Only, after the switch that switches on power, between inner rotor motor rotor and stator, just relatively rotate that (motor stator is Tong Bu with center driving axle Rotate), thus drive screw turns, screw turns, feed screw nut is axially moveable, thus changes magnetic piece fixed disk and inductive disks Between distance (magnetic field coupling gap), reach the purpose of variable speed energy saving.
5. according to the M type ball-screw electric speed regulation disc type magnetic coupler described in claim 1, claim 2, its feature It is the technical method using at a high speed revolution conductive contact using brush and slip ring as dynamic Contact, in brush, connects slip ring, external External power source, slip ring is fixed on motor stator, and with motor stator synchronous rotary, brush is assemblied in insulant and is internally formed quiet Stop part, it is also possible to fill counter to brush and slip ring, by connecing brush in slip ring, external external power source.