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阿Q吧 > 架子工的电动扳手有时候没力敲几下又有力是什么毛病，开关还是打击块的毛病，一体电机是不是不能更换碳刷

架子工的电动扳手有时候没力敲几下又有力是什么毛病，开关还是打击块的毛病，一体电机是不是不能更换碳刷

2025-03-28 14:30:03

推荐回答（2个）

回答1：

架子工电动扳手没力主要一是冲击块的压力簧有问题导致出力不够或不脱扣冲击，二是主动块和从动块有问题不脱扣冲击，三是电池包有问题导致放电不稳，四是电机故障。你需要逐条排除。
架子工扳手电机有两种，带碳刷的串激电机和不带碳刷电子换向的直流电机，后者因为效率更高更适合在充电式的架子工扳手上使用。

回答2：

脱扣内部磨损、间隙变大，阻力减小、故无力。

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