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我厂有一台Z3080摇臂钻床,经七年使用,变速箱出现了主轴正转噪声大和发热的问题。于是,我们清洗了液压系统中的油泵和管路,更换破损的油管、密封垫及正反转离合器摩擦片,但故障仍然存在。经过观察,发现:(1)操纵阀手柄在正转位置有噪声;(2)操纵阀手柄在反转位置时没有噪声;(3)操纵阀手柄在变速位置时,主轴正转,但此时没有噪声;(4)变速箱中带有正反转、刹车离合器的Ⅲ轴发热,热源是由于摩擦片打滑引起。
I plant a Z3080 radial drilling machine, after seven years of use, the gearbox has a spindle forward noise and heat problems. As a result, we cleaned the pumps and piping in the hydraulic system, replaced the damaged tubing, seals, and reversing clutch friction plates, but the problem persists. After observation, it was found that: (1) the control valve handle has noises in the forward rotation position; (2) the control valve handle has no noise in the reverse rotation position; (3) when the control valve handle is in the transmission position, the main shaft rotates forwardly No noise; (4) gearbox with positive and negative, brake shaft of the clutch Ⅲ fever, heat source is due to the friction plate caused by skidding.