Permanent magnetism eddy current shaft coupling

Abstract

The invention provides a permanent magnetism eddy current shaft coupling, which can realize highly-efficient torque transmission (the efficiency can be as high as 98%) and stable torque transmission (the fluctuation will not exceed 0.5%). The permanent magnetism eddy current shaft coupling comprises permanent magnets, whose number or set number is the multiple of 4, and which conduct auxiliary magnetizing, and are inlaid in an active rotor in a wedge-shaped manner. The vibration and noise generated by installation gap can be effectively reduced. The permanent magnetism eddy current shaft coupling also comprises a driven rotor, which is provided with a helical groove. Accordingly, the output torque is high in stability, and vibration and noise when the system works can be greatly reduced; cross ventilation can be formed, and a large amount of heat can be taken away, and the heating problem can be resolved. The permanent magnetism eddy current shaft coupling also comprises an axial moving mechanism, which adopts the cooperation mode of an electric performer and sliding shoes. Two ends of the electric performer adopt ball joint. The permanent magnetism eddy current shaft coupling alsocomprises an air filter, which can reduce pollution of air-suspending particles like ferromagnetism particles and coal powder to the system. The invention is advantageous in that maintenance cost islow (no vulnerable parts are provided and cleaning frequency is low); environment can be protected and energy can be saved; flexible starting is provided, and heating is little; speed-regulating scopecan be wide; energy conservation and emission reduction can be realized.

Description

technical field [0001] The invention relates to a permanent magnet eddy current coupling. Background technique [0002] my country is rich in resources and is a country with a large production capacity, but it is also a country with a large energy consumption. The phenomenon of energy and resource waste is serious, and the utilization rate is low. Saving energy and reducing consumption has become a hot spot of social concern and an important issue that must be considered in the design process. Equipment such as pump motors and fans are widely used in social production, and their energy consumption accounts for a large proportion of total social energy consumption, accounting for about 31.3%. Due to the design deficiencies of pump motors and fans currently used in our country, especially in large-scale drive equipment, they are still relatively backward compared with foreign developed countries, and in the process of matching motors and loads, there are often "big horses and ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a permanent magnet eddy current coupling. Compared with the existing patented technology, the stability of torque transmission is greatly increased, and the air convection is formed by itself without increasing the mechanism. Effectively solve the problem of heat generation, and can be applied to poor power grid quality, high humidity, dusty, flammable and explosive environments, and even meet the requirements of use in the case of "shocking electricity", with green energy saving, no-load start, short start-up time, Less heat, wide speed range and many other advantages

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