One:Product profile
Jiangsu Magnet Valley Technology Co., Ltd. is the first company focusing on R&D of high torque permanent magnetic coupling (above 1500N•m, the highest is up to 480000N•m). It is a kind of super-elastic non-contact synchronous coupling beyond existing technologies, which can be widely applied to replace torque limited hydraulic coupling and snake spring coupling to eliminate shock load, isolate vibration and avoid damage of spare parts caused by stress during installation.
It can be widely applied to various power equipment such as conveyor, excavator, hoisting machine, ball mill, crusher, coal mill, air preheater, water pump, fan, stacker-reclaimer, centrifuge, mixer, injection molding machine, boiler slag crusher in industries such as electric power, steel, mining, coal, chemical, lifting, papermaking, textile, shipbuilding, cement and aerospace. It has been.
In 2017, “Synchronous permanent magnetic coupling” was listed in “national key energy-saving and low-carbon technologies promotion catalog (2017 low-carbon part)” awarded by National Development and Reform Commission.
In August 2017, the company was authorized as national green factory (only 201 nationwide).
Two:Work principle
It is a new type of protective coupling to connect prime motor and the working machine through the magnetic force of permanent magnets. It adopts rare earth permanent magnetic field for magnetic levitation transmission. It can replace traditional hard (mechanical) connection to realize soft (magnetic) connection.
The starting current is reduced by 1/2-2/3.
The elastic displacement (angle) reaches 7.5°- 15° (maximum is 90°).
Transmission efficiency is almost 100% with no temperature rise.
Error of the millimeter level is allowed.
Non-destructive slipping protection (mechanical load).
Magnetic levitation transmission, vibration and noise isolation.
Super elasticity and impact cushion.
Advantages
It integrates non-contact transmission and super-elastic (soft), which greatly reduces the impact and vibration of the transmission chain, and the service life is 30 years.
Three:Features
● Isolating the vibration( reduce more than 85% vibration transmission)
● Elastic buffering,reduce the impact on the motor and loading equipment
● Adapt frequently positive&negative rotation 、high speed and low speed working situations.
● Balance the load of every motor in the multiple drive system
● Allow larger centering error
● Transform the torque through the air gap,no mechanism contact,maintenance-free and have a long life
● Slip protection under overload,stop and recovery automatically
● Structure is simple,installation and disassemble is convenient
● Adapt the explosive,flammable,dusty and low temperature.,etc harsh environment.
● Effective torque transmission
● Static torque can be set(customized)
Four:Application
The permanent magnet coupling can be used in belt conveyor,scraper conveyor,chain conveyor, bucket-wheel excavator,all kinds of lifting machine,ball mill,crusher,coal mill,air preheater,pump,bucket-wheel stacker reclaimer,centrifuge,mixer,injection molding machine,slag crusher,etc.
1、The permanent magnet coupling with brake wheel is used in bucket wheel machine's arm rotation system of power plant.（two motors linkage）
2、The permanent magnet coupling(basic type) is used in roller driving device of power plant.
3、The permanent magnet coupling(basic type) is used in pump of steel plant.
4、The permanent magnet coupling(basic type) is used in belt conveyor of coal industry.
5、The permanent magnet coupling(basic type) is used in crusher conveyor system of steel plant.
6、The permanent magnet coupling(suspension type) is used belt conveyor of power plant.
Five:TYL type permanent magnet coupling structure diagram,characteristics and main technical parameters
● TYL type permanent magnetic coupling is the common type with two kinds of connection modes: single flange shaft sleeve and double flange shaft sleeve.
● Single flange shaft sleeve is suitable for small torque occasions and double flange shaft sleeve is suitable for large torque occasions.
● During installation, disassemble the flange shaft sleeve and install it on the drive shaft or load driven shaft, axially moving the motor to match the coupling bore.
● The shaft bore of the flange shaft sleeve and the shaft adopt transition fit or clearance fit. Cold charging is commonly used and hot charging is also feasible. It is equipped with set screws.
●Dimensions and tolerances of shaft bore keyway of flange shaft sleeve refer to GB/T 1095-2003.
●No need of accurate centering, installation and disassembly is convenient. Compact structure and maintenance free.
TYL type permanent magnet coupling parameters and dimensions
Six:TYLZ type permanent magnet coupling structure diagram,characteristics and main technical parameters
● TYLZ type permanent magnetic coupling is brake wheel type with two kinds of connection modes: single flange shaft sleeve and double flange shaft sleeve.
●The main dimensions of the brake wheel are based on the standards of the machinery industry, and can also be designed according to customers’ requirements.
● Adaptable to working conditions where there is frequent positive & negative rotation and braking.
TYLZ type permanent magnet coupling with braking parameters and dimensions
Seven:TYLX type permanent magnet coupling structure diagram,characteristics and main technical parameters
● TYLX type permanent magnetic coupling is cantilever type, of which one end is plum-shaped half coupling and the other end is shaft bore.
● The dimensions of plum-shaped half coupling are based on the standards of the machinery industry, and can also be designed according to customers’ requirements.
● Adaptable to working conditions where there is frequent positive & negative rotation.
● During installation, disassemble the plum-shaped half coupling flange connection first, and insert the permanent magnetic coupling body into motor shaft, then install the plum-shaped half coupling on the permanent magnetic coupling body.
● During installation, disassemble the flange shaft sleeve and install it on the drive shaft or load driven shaft, axially moving the motor to match the coupling bore.
●Dimensions and tolerances of shaft bore keyway of flange shaft sleeve refer to GB/T 1095-2003.
● No need of accurate centering, installation and disassembly is convenient. Compact structure and maintenance free
TYLX suspention typepermanent magnet parameters and dimensions
Permanent magnet coupling(match with the motor power)selection table
Nine:Order description
1、If there is no special working conditions, select the permanent magnetic coupling by checking the selection table according to the power of the motor and the pole numbers or calculating the motor power and revolving speed. The safety coefficient value range is generally between 1.8 and 2.5.
2、When ordering goods, please provide shaft extension dimensions of the motor and working machine (reduction gear, etc.), including shaft diameter and tolerance fit, matched length and keyway size etc.
3、Order example: if motor power P=55KW, revolving speed=1480rpm, calculated nominal torque TN=355N•m, motor shaft diameter d1=60mm, reduction gear matched shaft diameter d2=55mm, then the selected permanent magnetic coupling can be simplified as TYL3-60/55.
4、Various specifications of the permanent magnetic coupling can be customized.
Click to download information collection table
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