Magnetic clutch for wind power generation

Abstract

The magnetic clutch comprises an inner wheel and an outer wheel, the inner wheel and the outer wheel are coaxially arranged, a plurality of first magnetic units are distributed on the inner wheel, a plurality of mounting grooves are distributed in the outer wheel, each mounting groove comprises a groove opening and a groove bottom, the groove opening faces the wheel center, the groove bottom is located on the opposite side of the groove opening, and the first magnetic units are arranged on the first magnetic units. A second magnetic unit capable of centrifugally sliding is arranged in each mounting groove, one end of each second magnetic unit extends out of the corresponding groove opening to be in contact attraction with the corresponding first magnetic unit, and a sliding gap is reserved between the other end of each second magnetic unit and the corresponding groove bottom. Compared with the prior art, through the design of a magnetic structure, under the action of centrifugal force, the effects of meshing and power transmission at a low speed and disengagement at a high speed can be achieved, and the clutch has the advantages of being high in transmission efficiency, long in service life, low in noise during working and the like.

Description

technical field [0001] The invention relates to the technical field of clutches, in particular to a magnetic clutch for wind power generation. Background technique [0002] The development and utilization of wind energy has received more and more attention from all over the world. However, the erratic wind power on the sea not only provides huge energy, but also causes huge load impact on wind power generation equipment, and timely maintenance of equipment also causes great difficulties. The clutch is an important part connecting the wind turbine gearbox and the generator, and plays the role of transmitting and interrupting power. Due to the uncertain wind force and wind direction in nature, and the excessive speed of the blades will cause the generator coil to overheat and burn out, it is required that the clutch can transmit power in both positive and negative directions at low speeds, and can be disconnected at high speeds. Prevent generator damage. In order to realize...

AI Technical Summary

Problems solved by technology

In order to realize this function, the currently commonly used method is to use a clutch to cooperate with electromagnetic speed limit and braking technology. It is necessary to set up various parts such as a controller, an electromagnetic brake mechanism, an electromagnetic retarder, and a sensor, which has complex structure, high cost, and consumption. A series of problems such as electric energy, short service life, and large working noise

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