【摘要】：以45 k W雙盤異步式永磁渦流傳動調速器為研究對象,建立了永磁渦流傳動調速器機械能與磁能之間的能量平衡方程。結合虛擬儀器技術,設計并搭建了磁力耦合調速器性能測試綜合試驗平臺,著重對永磁渦流傳動調速器的調速特性、機械特性和溫度特性進行了試驗測試與研究分析。結果表明,永磁渦流傳動調速器在拖動電機轉速一定條件下,恒負載情況時,負載輸出轉速與氣隙距離之間近似呈二次函數關系;且在不同的負載條件下,永磁渦流傳動調速器有不同氣隙距離下的調速特性;氣隙距離恒定時,負載大小與負載輸出轉速近似呈線性關系,機械特性偏"軟";永磁渦流傳動的拖動電機輸出轉速、負載和氣隙距離恒運行情況下,永磁盤、散熱片及中部連接軸承溫度最終處在很小的范圍內波動,呈現穩(wěn)定狀態(tài)。試驗與分析結果可對進一步研究磁力耦合調速器的工況使用及優(yōu)化設計提供指導與參考依據。
[Abstract]:An energy balance equation between mechanical energy and magnetic energy of a 45 K W dual-disk asynchronous permanent magnet eddy current speed governor is established. Combined with virtual instrument technology, a comprehensive test platform for the performance test of a magnetic-force coupling speed governor is designed and built, focusing on the speed control characteristics of the permanent magnet eddy current speed governor. The results show that the relationship between the output speed of the load and the air gap distance is quadratic function under the condition of constant load, and the permanent magnet eddy current drive has different air gap under different load conditions. When the air gap distance is constant, the load size and the load output speed are approximately linear, and the mechanical characteristics are "soft"; when the permanent magnet eddy current drive motor output speed, load and air gap distance are constant, the temperature of the permanent magnet disc, the radiator and the central connecting bearing will fluctuate in a very small range at last, showing a very small fluctuation. The test and analysis results can provide guidance and reference for further study of the working condition and optimization design of magnetic coupling governor.
【作者單位】： 安徽理工大學機械工程學院;中國科學院安徽光學精密機械研究所;
【基金】：教育部高等學校博士學科點專項科研基金(博導類)(20133415110003) 安徽高校自然科學重點研究項目(KJ2016A199,KJ2017A083)資助
【分類號】：TH139

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