(2)已知载荷条件，选取机型和规格
已知工作转矩 =5600N.m和工作转速 =0.65r/min
基本功率                  =                              (4.1)
                             =
                             =0.4kW     
配用电机功率                 N= ×K                               （4.2）
                              =0.4×1.2
                              =0.48kW
额定功率                    [N]>N                                   (4.3)
                            2.2>0.48符合条件
已知工作转矩 =3000N.m和工作转速 =0.8r/min
基本功率                  =                               (4.4)
                            =
                            =0.26kW     
配用电机功率               N= ×K                                （4.5）
                            =0.26×1.2
                            =0.312kW
额定功率                  [N]>N                                     (4.3)
                         0.75>0.312符合条件
根据传动比 =11在表4.3中选择减速机型号

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