WO2015184562A1

WO2015184562A1 - E-model electric speed regulation disc-type magnetic coupler having ball-screw

Info

Publication number: WO2015184562A1
Application number: PCT/CN2014/000552
Authority: WO
Inventors: 李启飞
Original assignee: 李启飞
Priority date: 2014-06-04
Filing date: 2014-06-04
Publication date: 2015-12-10
Also published as: CN107112885A

Abstract

An E-model electric speed regulation disc-type magnetic coupler having a ball-screw, having four series: air-cooled E-model electric speed regulation disc-type magnetic coupler having a ball screw, liquid-cooled E-model electric speed regulation disc-type magnetic coupler having a ball screw, serially connected, air-cooled E-model electric speed regulation disc-type magnetic coupler having a ball screw, and serially connected, liquid-cooled E-model electric speed regulation disc-type magnetic coupler having a ball screw. A speed regulation mechanism (3) having an external rotor motor and a ball-screw is used to regulate the distance between sensor discs (1, 5) of the disc-type magnetic coupler and magnetic fixing discs (2, 4), thereby enabling economically viable, energy-conserving speed regulation for transmission equipment.

Description

E-type crane screw electric adjustable ship type magnetic coupler

3⁄4 ^ field

Power transmission, energy saving, dynamic equipment, magnetic drive. Background technique

Since the use of geomagnetically driven invention compasses by humans, the study of the use of magnetic field energy has not stopped. With the development of modern magnetic theory, the application of magnetic drive products in the industry is endless, such as magnetic pumps, magnetic bearings, magnetic couplings, magnetic gears and so on. Limited to the constraints of magnetic materials, magnetic drive technology developed slowly. Until 1983, China developed a high-performance permanent magnet material NdFeB, which was rapidly developed and applied.

Since the magnetic coupler has been separated from magnetic drive products such as magnetic pumps as a separate branch, various products have emerged, but they are limited to structural reasons and can only be limited to the dynamic power of medium and small power, medium and small torque ranges. In transmission applications, and expensive. Primary wind turbines (6000KW, 1496r/min), secondary fans (4550KW, 1495r/min), coal crushers (1200 W, 490r/min), and large wind turbines in steel plants and mines, etc. There are technologies and products that cannot meet the needs of practical applications.

Energy conservation and emission reduction are urgent needs. Energy-saving equipment, currently more efficient, variable frequency speed control energy-saving and grooved cam mechanism speed magnetic coupling speed control energy saving. The inverter has a short service life, poor environmental adaptability, large floor space and high maintenance requirements. The high-voltage inverter has a higher failure rate and poor reliability. The grooved cam mechanism variable speed magnetic couplings (cylinder and disc type) that have been applied at present are limited in application range due to structural reasons and are expensive. The liquid-cooled groove cam mechanism speed-regulating magnetic coupling can only be applied to the medium-speed dynamic equipment below 2500KW. The air-cooling groove cam mechanism speed-regulating magnetic coupling can only be applied to the medium-speed dynamic equipment below 350KW. in. The barrel magnetic coupling is even worse. The liquid-cooled speed control product can only be applied to the medium-speed moving equipment below 800KW, and the safety and reliability are not high.

Summary of the invention

The invention focuses on finding a technical method for solving the high-power, high-torque dynamic equipment speed regulation and energy saving, and along with this technical method, four series of E-type ball screw electric speed-regulating disc type magnetic couplers are air-cooled. E type ball screw electric speed disc type magnetic coupling (FTE series), liquid cooled E type ball screw electric speed disc type magnetic coupling (YTE series), series air cooled E type ball screw electric speed disc type magnetic Coupling (CFTE series), series liquid-cooled E-type ball screw electric speed disc type magnetic coupling (CYTE series). Appendix

Figure 1 shows the air-cooled E-type ball screw electric speed-disc type magnetic coupling (FTE series), Figure 2 shows the liquid-cooled E-type ball screw electric speed-regulating disc type magnetic coupling (YTE series), and Figure 3 shows the series air-cooling. E type ball screw electric speed disc type magnetic coupling (CFTE series), Fig. 4 is series liquid cooling E type ball screw electric speed disc type magnetic coupling (CYTE series).

The four series of E-type ball screw electric speed disc type magnetic couplings all include the following parts: 1 and 5 in the figure are induction discs, 2 and 4 are magnetic block drawing plates, and 3 are outer rotor motor ball screws. Speed governing mechanism, 6 is a high-speed rotary joint for electric speed control.

For liquid-cooled E-type ball screw electric speed disc type magnetic coupling (YTE series, CYTE series), the reference numeral 7 in the figure is a high-speed rotary sealing assembly to ensure that the coolant (oil or water) inside the magnetic coupling does not leak.

For series E-type ball screw electric speed disc type magnetic coupling (CFTE series, CYTE series), theoretically, any group can be connected in series, which can be determined according to requirements. Figure 3 and Figure 4 show three groups in series. 8 is an induction disk and a magnetic block fixing plate which are connected in series in the middle.

Four series of E-type ball screw electric speed disc type magnetic coupling, all induction ^: consists of limit bolts to form the outer rotor, all the magnetic block fixed discs are connected in series on the central drive shaft, and the outer rotor motor ball wire The bar speed regulating mechanism together constitutes an inner rotor, and the central transmission shaft has a wire connecting motor (the motor stator is fixed on the central transmission shaft, and the central rotating shaft is relatively stationary) and the inner rotor (and the central transmission shaft of the electric speed special high-speed rotary joint) Relatively static), the outer rotor of the high-speed rotary joint for electric speed control is connected to the external power supply by a bidirectional switch. The bidirectional switch controls the direction of current flow into the motor, thereby changing the direction of the motor. The outer rotor of the motor drives the screw to rotate (gear transmission), the screw rotates, and the screw nut (fixed together with the magnet fixing plate) moves in the axial direction, thereby changing the distance between the magnetic plate fixing plate and the sensing disk (magnetic field coupling) Gap), in order to achieve the purpose of speed regulation and energy saving (the change of the magnetic field coupling gap will lead to the change of the inner and outer rotor slip of the magnetic coupling, that is, the change of input and output speed).

Figure 5 and Figure 6 show the ball screw speed governing mechanism of the outer rotor motor. The center shaft of the motor can be made into a hollow structure (fixed on the center drive shaft with set screws), so that the motor can be mass-produced by professional manufacturers, and the screw can be used. The existing series of products, with gear interference.

Figure 7, Figure 8, Figure 9, Figure 10 shows the high-speed rotary joint for electric speed regulation. It adopts modular series structure and can connect any channel in series. Figure 7 shows three channels, and the sealing rings at both ends are 6-20. 6-21 can be made of tungsten carbide, graphite and other materials, 6-5, 6 7 , 6-8, 6-24, 6-25 with wires in and out of the wire can be electrically insulated, 6-22 using electrical contact materials, 6-23 is a combination of electrically insulating materials embedded with electrical contact materials. 6-U is a spring used to balance the contact pressure. The guide pins 6-15 at the spring guide the spring to limit the spring force during high-speed rotation. Failure under action.

Figure 11 shows the liquid-cooled E-type ball screw electric speed disc type magnetic coupling (YTE series, CYTE series) housing and internal high-speed rotary seal assembly, sealing ring 7-3, 7-4, 7-6, 7 -7 is a dynamic seal, and tungsten carbide can be used depending on the coolant. For graphite and other materials, the spring 7-11 is used to compensate the wear of the seal ring, balance the seal pressure, and the guide pin 7-2 at the spring acts as a guide to the spring to prevent the spring from failing under the centrifugal force during the high-speed rotation. -1, 7-10 and the guide pin 7-2 combine to position, 7-5, 7-8, 7-9 are static seals, 0-rings can be used.

Drawing 12 is a series E-type ball screw electric speed disc type magnetic coupling (CFTE series, CYTE series). The intermediate series inductive disc and the magnetic block fixing disc, the positioning sleeves 8-1, 8 2 position the sensing disc outside the magnetic coupling On the coupling screw of the rotor, the limiting sleeve 8-8 slides the magnetic block fixing plate on the central transmission shaft to limit the position.

Figure 13 and Figure 14 show the induction discs with raised blades on the disc surface to help dissipate heat. When the unknown device is rotated, the shape shown in Figure 13 can be selected. If the device is rotated, the shape of the sodium streamline shown in Figure 14 can be selected to increase the heat dissipation and reduce the spoiler noise.

Figure 15 shows the distribution and shape of the magnetic blocks on the magnetic block fixed disk, and the magnetic block arc transitions to avoid the induced magnetic field malformation caused by the square.

Figure 16, Figure 17, and Figure 18 show the grouping scheme of the high-speed rotary joint for electric speed regulation. It adopts modular series structure and can connect any channel in series. Figure 16 shows three channels, and the inner rotor is connected by bolts 4. The parts are then assembled with the outer rotor of the swivel joint, and then fixed to the central drive shaft by the positioning screws. The inner rotor and the central drive shaft rotate synchronously, and the outer rotor is stationary to connect the external power source.

Regarding the manufacturing process of the elongated hole in the center drive shaft, the elongated hole processing can be directly performed. In order to simplify the machining process and reduce the manufacturing cost, it is also possible to use aluminum extrusion molding and then nesting with the central drive shaft, as shown in Fig. 19.

Figure 20 shows the structure of the FTE series magnetic coupling to remove the inner two-end bearing. The expansion shaft is connected between the transmission shafts. Other series can also do this, but this solution can only be used in low load conditions and shafts. Very small cases, the reasons are as follows: Induction discs 1 and 5 are assembled by bolts to form an outer rotor. The magnet block fixing discs 2 and 4 are connected to the speed governing mechanism 3 and the swivel joint 6 by a central drive shaft to form an inner rotor, and the inner and outer rotors are not in contact with each other. However, since it is difficult to ensure the parallelism between the induction disk and the magnetic plate fixing plate during assembly, the alternating stress (the magnetic field coupling additional bending moment) is caused by the bearing support of the motor central shaft bearing and the load transmission shaft bearing. Excessive wear on the shaft fails. In addition, the effects of the shaft 会 can cause unstable operation and, in severe cases, an accident. In the case of ^, such a scheme should be used with caution.

Specific 3⁄4 ^

The various components and components included in the E-type ball screw electric speed-disc type magnetic coupler can be manufactured by modern industrial manufacturing technology. Ball screws, motors, magnetic blocks, and bearings can be produced by professional manufacturers. Other parts can be machined, mold formed, and welded.

E 3⁄4 lacquered bead wire. The dynamic 谏 disk type magnetic coupler is used as a kind of dynamic equipment. The following two conditions: (1) Power calibration - establish a complete test bench (each power torque interval) to complete the calibration of serialized products. (2) Dynamic balance detection ~~ "Rotating equipment must meet the dynamic balance requirements stipulated by relevant standards to achieve the necessary safety and reliability.

Claims

The present invention focuses on the fiber to a solution * too power, high-growth equipment speed regulation 馋 tt tt * tt, with the meditation of the ft method of the 闘闘闘闘到到到到到到到Type of force coupler, air-cooled E-type bead fttt electric rigid speed disc type magnetic pro (FTE series), liquid-cooled E 3⁄4 ball screw electric speed disc type magnetic coupling (YTE series), series air-cooled E-linger 3⁄4 electric speed child magnetic coupling (CFTE system), series liquid cooling E type ball tt electric run catching magnetic coupling icrm series>. The power requirements are as follows

1, the magnetic 耩 series external rotor electric * let the beads ft * dynamic speed control "挟方方 i ^ ^ ft method to solve the big Λ rate, high entangled « moving 3⁄4 preparation « speed energy saving, which is characterized by the Chinese movement In the shaft, the female main fiber is left in the 钤钤 rotor motor rolling ft ft electric speed governing mechanism at the same time.

2, and the rotor electric peach ball wire II adjustment machine adjustment *» ft take the side - the other is the 卦 rotor motor bead * * Convergence should be 》 When the power is not connected, the outer rotor motor stator, rotor, ball ft assembly Rotating with the Chinese moving shaft, relatively static, after turning on the electric switch, the rotor of the rotor and the stator of the rotor rotates, and the electric yoke and the middle shaft move.箫羞 tt tt turn, the screw rotates, 3⁄43⁄4鳔 mother soup shaft «moving the soul, driving the magnet to fix the plate to slide, the good axis slides, and the acid-changing magnet fixed disk and the induction disk smell ft! distance (magnetic field coupling gap ), the purpose of speeding energy saving.

3. Electric speed special high-speed H-connector Weng tt method one electric idling special high-speed rotary joint ή 转子 rotor and outer rotor two parts of the 戚, the rotor is stationary, belongs to the "external Zou electric beach, ή rotor cold The high-speed axis of the good axis is rotated, and the two are twisted against the static ±, ή the rotor current path is electrically connected to the 黡 3⁄4 «

4, high-speed rotary seal using the guide pin to control the static spring smashing to make a tactical method. There is a special high-speed splicing joint for electric speed control. Yujing adopts the sealing knot plum climbing liquid cold rolling ball H3⁄4 electric speed regulating disc The magnetic smashing two smashed the knot.

5, Feng Leng E Ling bead 3⁄4: Electric speed disc type magnetic 鞯 series "Weng Jie" The program is characterized by electric speed special high concealer adapter, outer rotor motor ball screw speed control mechanism.

The surface ES makes the bead * ft electric 镛仓磁磁磁磁 —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— A 3⁄4 speed swivel seal between the rotor and the outer casing.

7, series air-cooled E-type ball screw electric spoon-type magnetic "" (CFTE system) Weng Yi program one is characterized by electric idling dedicated high catch H adapter, outer rotor motor ball screw speed governing mechanism, series structure (The three groups are connected in series in the manual, and two or more groups can be connected in series, and the structure is the same).

8, the series of liquid-cooled E-type ball screw electric speed disc type magnetic cymbal (CYTE series) structure program - characterized by electric speed special sorghum B adapter, 钤 rotor motor ball il adjustment "mechanism, magnetic coupling The meat-raising capsules and the three shells of the genus Wengfu catch the 闘 turn window seal structure, series structure (« sac in the kitchen show * three groups in series, can be connected in two or more groups, the same structure).