The principle and advantages of permanent magnet direct drive drum.

The permanent magnet direct-drive drum utilizes external rotor permanent magnet direct-drive technology, achieving an integrated "electric drive + transmission" design. It mainly consists of a stator and a rotor. Its core structure is as follows: a fixed central shaft serves as the stator, with silicon steel sheets and winding coils stacked on it, generating a rotating magnetic field when energized; the rotating outer shell serves as the rotor, with neodymium iron permanent magnets installed on its inner wall to generate a static magnetic field. The interaction of these two magnetic fields directly produces driving torque. This design eliminates the need for traditional drive devices and features a compact structure and high transmission efficiency.

The stator water-cooled structure adopts a patented design and a spiral waterway structure, which makes heat dissipationmore efficient and uniform;

The magnet is fixed with a cage-embedded patented structure, which does not damage the integrity of the permanentmagnet and ensures that the permanent magnet is firm and reliable.

IP67 bearing isolator is used to enhance the overall dustproof and waterproof ability of the equipment, and the wholemachine can reach IP65 dustproof and waterproof;

Neodymium iron boron high-performance permanent magnet material, temperature resistance grade UH, temperatureresistance up to 180°C;

The bearings are spherical roller bearings, which can withstand the side load impact of the rollers when the belt conveyor is running

No need for drive unit layout, reducing engineering workload; for multi-point drive belt conveyors, drive point layout is simple and convenient; No intermediate transmission links, system efficiency is increased by more than 20%, reducing equipment failures and saving energy; Starting torque reaches 2.2 times the rated torque, enabling heavy-load starting; Electromagnetic, structural, and temperature field simulations are performed using professional software to optimize design parameters; The patented water-cooling system provides a reliable temperature environment for the permanent magnet drum, and automatic over-temperature protection provides a solid guarantee against demagnetization; Equipped with a high-quality frequency converter, using vector control, a master-slave control strategy is adopted for multi-drive operation to achieve power balance; The system is maintenance-free, requiring only one grease injection into the bearings after 3000 hours of operation; The outer coating uses REMATIPTOP wear-resistant and flame-retardant rubber sheets, resulting in a long service life and maintenance-free operation.