电动叉车接触器的触点闭合故障的原因
发布日期：2021-05-27 11:07:50
叉车接触器是电动叉车电气系统中的重要组成部分。它用于完成车辆的运行，停止和速度调节。不论使用电动叉车的环境条件如何，其接触器的常见故障大多是主接触器的动静触点未啮合或接触不良导致的触点闭合故障，触点烧毁或焊接能力等。分析了电动叉车通用拍击式接触器的结构和作用原理，分析了其故障原因。
电动叉车接触器的结构和作用原理。接触器通常由接触系统，电磁系统，灭弧装置，复位弹簧，支架和固定装置组成。作用原理：接触器电磁系统的励磁线圈将通电。电磁铁芯产生电磁力。因为电磁力大于复位弹簧的机械反向力，所以驱动了与电枢连接的主触点支架。主常开动触头和常开静触头接合，主电路导通；
同时，在此过程中，复位弹簧被压缩，并且常闭联锁触点分离。励磁线圈断电后，电磁体失去励磁，剩余磁力小于复位弹簧的机械反向力，电枢复位，主触头断开。同时，在此过程中，常闭联锁触点被接合。
因此，叉车接触器的触点必须接触良好。您应始终检查机芯是否灵活以及触点是否烧毁。如果有污垢和疤痕，应及时清除并进行定期检查。叉车阻力。检查叉车电阻是否损坏或损坏，并去除电阻上的灰尘，以利于叉车电气系统附件的散热。
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