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掘进机机载喷雾泵故障点及其处理方法

2024-11-16

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1、输出水量不足

故障原因:

①供水量不足,解决办法:

a.检查供水管有无损坏;

b. 检查供水压力是否达到0.5 MPa以上;

c. 检查进水过滤器是否堵塞,对过滤器进行反冲洗。

②液力端部件可能有损坏,解决办法:

a.检查吸水阀组、排水阀组有无杂质卡塞,导致阀关闭不严;

b. 检查吸水阀、排水阀及阀座有无磨损、损坏及变形;

c. 检查吸水弹簧、排水弹簧有无变形及损坏;

d. 检查吸水阀相关密封件有无损坏,密封是否可靠。

2、输出压力不足

故障原因:

① 同1,解决办法:

按1逐项进行检查。

② 组合密封磨损或损坏,解决办法:

更换柱塞组合密封。

③ 柱塞过度磨损,解决办法:

更换柱塞体。

④ 安全阀压力调节过低,解决办法:

调整安全阀的泄载压力。

3、输出压力呈明显脉动,水量明显减少或喷雾压力明显降低

故障原因:

①供水不足,解决办法:

按1逐项检查。

②吸水、排水阀组卡塞或损坏,解决办法:

a. 检查吸水、排水阀组(特别是吸水阀组)中是否有杂质卡塞,导致吸水阀、排水阀关闭不严或阀的动作周期不恒定;

b. 检查吸水、排水阀组各部件有无变形或损坏。

4、柱塞漏水

故障原因:

① 组合密封过度磨损,解决办法:

更换柱塞组合密密封。

② 柱塞过度磨损,解决办法:

更换柱塞体。

5、泵工作过程中有不正常声响

故障原因:

① 连杆轴瓦或柱塞销孔过度磨损,解决办法:

更换连杆组。

②轴承损坏,解决办法:

更换轴承。

6、柱塞漏油

故障原因:

柱塞油封损坏,解决办法:

更换柱塞油封。

7、驱动轴处漏油

故障原因:

压紧螺钉松动或轴O型密封圈损坏,解决办法:

调节压紧螺钉或更换O型密封圈。

来源:公众号“煤矿机械”