鸭博视频电机教大家如何给电机轴承加油-西门子电机

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                鸭博视频电机教大家如何给电机轴承加油

                2018/12/3 18:29:50      点击:
                鸭博视频电机润滑脂寿命和再润滑周期
                对于不可再润滑的轴承,其润滑脂寿命与轴承寿命相
                当。但是,这只能是在电机严格按照本样本中规定的技
                术数据运行。
                对于以规定间隔再润滑的电机,轴承寿命可以延长,从
                而补偿不利因素,诸如温度、安装条件、转速、轴承规
                格和机械载荷造成的影响。
                当电动机在非正常的条件下运行时,轴承的寿命会缩
                短。如下面几种情况:
                ■ 当电动机的运行速度高于额定速度时,由于电动机的
                振动增大,使得轴承受到额外的径向力和轴向力,导
                致其寿命减少;
                ■ 当环境或设备等因素引起电动机振动加大时,同样轴
                承也会因此受到额外的径向力和轴向力,而导致其寿
                命减少;
                ■ 当环境温度每升高 10oC,润滑脂寿命以及再润滑时
                间缩短一半。
                机座号Frame size 极数 Poles 润滑脂寿命Grease lifetime up to CT 40 oC 1)
                持久润滑型轴承的润滑脂Grease for permanent lubrication bearing
                80 ~ 160 2,4,6,8 20000 或(or) 40000 2)
                可再润滑型轴承的润滑脂Grease for regreasable bearing
                180 ~ 250 2 4000 小时(h)
                180 ~ 250 4,6,8 8000 小时(h)
                280 ~ 315 2 3000 小时(h)
                280 ~ 315 4,6,8 5000 小时(h)
                355 2 2000 小时(h)
                355 4,6,8 4000 小时(h)
                注:
                1) 当环境温度每升高 10 oC,润滑脂寿命以及再润滑时间缩短一
                半。
                2) 在环境温度 25 度下,40000 小时适用于电动机水平安装,且
                轴不受额外的轴向力影响;
                润滑脂寿命和再润滑周期(电动机水平安装)
                Grease life (Horizontal installation)
                Grease life and re-greasing interval
                For permanent lubrication, the bearing grease lifetime is
                matched to the bearing lifetime. This can, however, only
                be achieved if the motor is operated in accordance with the
                catalog specifications.
                For motors which can be regreased at defined regreasing
                intervals, the bearing lifetime can be extended and/or
                unfavorable factors such as temperature, mounting conditions,
                speed, bearing size and mechanical load can be compensated.
                ■ When motor runs beyond the rated speed, the increase of
                motor vibration will result in the extra radial and axial
                force on bearing. This will reduce the life of bearing;
                ■ When the motor vibration increase due to the environment
                or other equipment, the bearing also will endure more
                radial and axial force. This also will reduce the life of
                bearing;
                ■ If the coolant temperature is increased by 10 oC, the grease
                lifetime and regreasing interval is halved.