CN105896921A - 537-model ball screw electric speed regulation disc magnetic coupler - Google Patents

Abstract

The invention provides a 537-model ball screw electric speed regulation disc magnetic coupler belonging to the field of power transmission, energy saving and emission reduction, moving equipment, and magnetic drive. A speed regulation system formed by a gear transmission ball screw speed regulation mechanism, a high-speed rotary conductive joint (or electric speed regulation special high-speed rotary joint) and a motor is utilized. The 537-model ball screw electric speed regulation disc magnetic coupler has two series which are an air-cooled 537-model ball screw electric speed regulation disc magnetic coupler (FT537) and a liquid-cooled 537-model ball screw electric speed regulation disc magnetic coupler (YT537). The present invention provides an economic and feasible method for the speed regulation and energy saving of the moving equipment.

Description

537 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 537 type ball-screw electric speed regulation disc type magnetic coupler of 537 type ball-screw electric speed regulation disc type magnetic coupler (FT537 series), the cold 537 type ball-screw electric speed regulation disc type magnetic coupler of liquid (YT537 series).

Accompanying drawing explanation

Fig. 1 is air-cooled 537 type ball-screw electric speed regulation disc type magnetic coupler (FT537 series), the cold 537 type ball wires of liquid Thick stick electric speed regulation disc type magnetic coupler (YT537 series) adds casing, and coolant is passed in and out by pipeline on shell, forced fluid Cold.In Fig. 1, for making drawing clear, eliminate the projection of one group of lever lazy-tongs, and the one group of lever projection retained is not cutd open Depending on.

537 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 gear drive ball-screw speed adjusting gear, and 6 is to turn round at a high speed conductive contact (or electric speed regulation specialized high-speed swivel coupling), power transmission shaft centered by 11,19 is support, and 23 is flange shaft sleeve.

In two the most serial 537 type ball-screw electric speed regulation disc type magnetic coupler, all of inductive disks assembly is joined by caging bolt Knot composition outer rotor, all of magnetic piece fixed disk component string is associated on center driving axle, and gear drive ball-screw speed adjusting gear Form internal rotor together.Turn round at a high speed slip ring and the motor stator synchronous axial system of conductive contact, geo-stationary, revolution conduction at a high speed The brush of joint and support keep geo-stationary.The brush of revolution conductive contact connects external power source at a high speed.Two-way switch control into Enter the sense of current of motor, thus change motor internal rotor and turn to the relative of center driving axle.Motor internal rotor driven gear axle Rotating, gear drive makes screw turns, screw turns, and feed screw nut (being fixed together with magnetic piece fixed disk assembly) moves vertically Dynamic, thus change the distance (magnetic field coupling gap) between magnetic piece fixed disk assembly and inductive disks assembly, to reach variable speed energy saving Purpose (change of 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), Lever lazy-tongs ensure the magnetic piece fixed disk component synchronization adverse movement of both sides.

Fig. 2, Fig. 3 show gear drive ball-screw speed adjusting gear, and gear drive ball-screw speed adjusting gear is by ball-screw group Part 3-1, gear drive (gear 3-6 and gear shaft 3-8 composition) and lever lazy-tongs (lever 3-12,3-15 etc. Composition) combine.In Fig. 2, spacing back-up ring 3-18 is used for ensureing that synchronizing bar 3-17 will not occur axial float, and 3-19 is micro- Adjusting spring, 3-1 is ball-screw assembly, and 3-2 is support.

Figure 15 show lever lazy-tongs schematic diagram.

Fig. 4 show magnetic piece fixed disk assembly 2, has clearly given expression to powerdriven mode semiaxis, also show magnetic piece Distribution situation.

Fig. 5 show magnetic piece fixed disk assembly 4, and it can not directly and center driving axle 11 carries out power transmission, but can be vertically Sliding, magnetic piece fixed disk assembly 4 relies on three synchronizing bar 3-17 to carry out driving coupling, also show the distribution situation of magnetic piece.

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 assembly, protruding blade are distributed, to help heat radiation in card.During unknown device rotation direction, can Select shape shown in Fig. 7, such as known device rotation direction, can be selected for the streamline shape shown in Fig. 8, disturb increasing heat dissipation capacity reduction Flow noise.When heat dissipation capacity is enough, inductive disks assembly uses square position, removes protruding blade, to simplify manufacturing process.

Fig. 9 show FT537 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, magnetic piece fixed disk assembly 2 and 4 and gear drive ball-screw speed governing by bolted on connection Mechanism 3, motor stator 7, rotor 8, synchronous disk 9, expansion set 10 etc. are connected by center driving axle and form internal rotor, inside and outside Rotor is not in contact with each other, but due to during assembling it is difficult to ensure that the depth of parallelism of inductive disks assembly and magnetic piece fixed disk assembly, so can be to electricity Alternate stress (effect of magnetic field coupling additional bending moment) is caused at machine central shaft bearing supporting and at load transmission axle bearing supporting, with Cause to lose efficacy in axle excessive wear.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 motor stator with location screw, and its internal rotor and center pass Moving axis 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.

In Fig. 1, label 7 is motor stator (outer surface has groove for extracting power supply cord), and 8 is rotor, synchronous disk 9 and swollen Set 10 guarantee motor stator 7 and center driving axle 11 synchronous axial system (geo-stationary), rotor 8 and gear shaft 3-8 are with tight Determine screw 13 to be fixed together, synchronous axial system.

Motor used by scheme shown in Fig. 1 is inner rotor motor, can use instead external rotor electric machine (label in Fig. 17 is become rotor, And label 8 becomes stator), will synchronous disk 9 in Fig. 1 and expansion set 10 remove, then by motor center Zhou Yuciou center Power transmission shaft 11 is fixed together (or consubstantiality), then (now label 7 that are fixed together by label 7 in gear shaft 3-8 Yu Fig. 1 Functional shift be rotor).

Figure 14 show the scheme after using external rotor electric machine instead.

Detailed description of the invention

What 537 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, gear all can be formed a complete production network by specialized vendor, and other parts machine adds Work, die forming, weld.

537 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 (5)

1. Its feature of organization plan of the most air-cooled 537 type ball-screw electric speed regulation disc type magnetic coupler (FT537 series) It is gear drive ball-screw speed adjusting gear, at a high speed revolution conductive contact (or electric speed regulation specialized high-speed swivel coupling).
2. 2. its feature of organization plan of the cold 537 type ball-screw electric speed regulation disc type magnetic coupler of liquid (YT537 series) It is gear drive ball-screw speed adjusting gear, at a high speed revolution conductive contact (or electric speed regulation specialized high-speed swivel coupling), outside installing additional Shell, forced fluid is cold.
3. 3., according to 537 type ball-screw electric speed regulation disc type magnetic coupler described in claim 1 and claim 2, it is special Levy the technical method gear drive ball-screw speed adjusting gear being to use gear drive ball-screw speed adjusting gear speed governing by ball Lead screw assembly, gear drive and lever lazy-tongs combine, during access failure power supply, and gear drive ball-screw speed governing Mechanism and center driving axle synchronous rotary, switch on power during speed governing, by motor driven gear, drives ball-screw through gear drive Assembly, makes rotation motion be in line slip, drives magnetic piece fixed disk to slide along center driving axle, thus changes magnetic piece fixed disk And the distance (magnetic field coupling gap) between inductive disks, reaches the purpose of variable speed energy saving, and lever lazy-tongs ensure the magnetic piece of both sides Fixed disk component synchronization adverse movement.
4. 4., according to 537 type ball-screw electric speed regulation disc type magnetic coupler described in claim 1 and 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 motor stator, and with motor stator 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.
5. 5., according to 537 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, outer rotor transfixion, in order to connect external power source, and internal rotor and center driving axle synchronous high-speed Rotating, both geo-stationary, the current path of inner and outer rotors is by the principle of Electric contact theory.