The semi direct drive planetary planetary electric drum belongs to the field of electric drums and includes a simplified body, a left support, and a right support. The cylinder is equipped with left and right supports at both ends, and a three-phase permanent magnet motor is installed inside the simplified body. The three-phase permanent magnet motor is connected to the planetary gear transmission reducer through gears, and the planetary gear transmission reducer is connected to the cylinder through gears and gear shafts. The use of a new type of electric drum with a three-phase permanent magnet motor combined with a planetary gear transmission reducer can effectively improve the service life of the gearbox. The semi direct drive planetary electric drum can achieve a super high power of over 55KW, with the advantages of strong load-bearing capacity and durability.
The semi direct drive planetary electric drum is designed to solve the problems encountered in the development of direct drive and doubly fed wind turbines towards large-scale production, taking into account the characteristics of both direct drive and doubly fed wind turbines. Semi direct drive is structurally similar to doubly fed drive and has the characteristic of diverse layout forms. The difference lies in the lower transmission ratio of the semi direct drive gearbox compared to the doubly fed model; Compared to direct drive models, semi direct drive has a higher rotational speed. This characteristic determines that semi direct drive can improve the reliability and service life of gearboxes, and at the same time, compared to direct drive, it can balance corresponding design and improve the design and manufacturing conditions of high-power direct drive.
The bearing is connected to the planetary gear transmission reducer through gears, and the motor shaft transmits power to the reducer, which in turn transmits power to the cylinder of the planetary electric drum. There is an internal gear ring on the inner side of the body, and the planetary gear transmission reducer is connected to the internal gear ring through gears and gear shafts. The reducer drives the internal gear ring to rotate through gears and gear shafts, thereby driving the cylinder to rotate. There is an explosion-proof junction box on one side of the left support, which is used for external power supply. The motor housing and the gearbox mounting bracket are connected by bolts, and the motor housing is fixedly connected to the gearbox mounting bracket. The gearbox mounting bracket is equipped with a planetary gear transmission gearbox.
Editor: ZiYu
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