【摘要】 针对低气压及真空条件下有刷直流电机电刷磨损严重的问题,分析了影响电刷磨损的主要因素,提出减小电刷磨损,延长电机使用寿命的改进措施。试验结果表明,采用本文提出的改进措施后,有刷直流电机在真空条件下使用寿命可延长近30倍。更多还原

【Abstract】 The main factors effected the brush abrasion is analyzed.The improved measure is present to reduce the abrasion and extend the operational life in vacuum and low pressure mainly against the state that the brush abrasion in vacuum and low pressure is much serious.It is tested after adopting the method presented in the paper that the operational life of brush-motors may prolong more than thirty multiples in vacuum condition.更多还原