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挖掘机的常见问题的排查方法

日期:2018-11-06   来源:/
相信做过挖掘机工作的师傅都有这种感觉,挖掘机在运转中可能会感觉到液压泵有异响,有的师傅检查了许多东西就是不知道是哪的问题今天就由加长臂挖掘机的小编给大家介绍一下排查办法!
It is believed that all the masters who have done excavator work have this feeling. The excavator may feel the abnormal noise of the hydraulic pump in operation. Some masters check a lot of things but don't know what the problem is. Today, the small edition of the lengthened arm excavator will introduce the investigation method to you.
假如听到液压泵有声响,咱们首先应:
If we hear the sound of the hydraulic pump, we should first of all:
1、测验液压泵压力是否正常;
1. Test whether the pressure of the hydraulic pump is normal.
2、承认液压泵两根输出油管是否有严峻颤动的现象;
2. Acknowledge whether the two output pipes of the hydraulic pump have severe tremor.
3、承认油箱内部液压回油滤芯内是否有金属粉末。
3. Admit whether there is metal powder in the hydraulic return oil filter inside the tank.
如以上三点承认正常,那么液压泵发出的声响是正常的,之所以有响声是因为:
If the above three points acknowledge normal, then the sound produced by the hydraulic pump is normal, the reason for the noise is that:
a、挖掘机的液压泵排量比其他机型更大;
The hydraulic pump of a and excavator is larger than other models.
b、液压泵装置室的边门未密封,有散热孔,和封闭式的比较而言有必定的噪音。
B. The side door of the hydraulic pump device room is not sealed and has a heat sink. Compared with the closed type, it has certain noise.
在第2点中,油管颤动应留意:
In the second point, the tubing tremble should be noted:
1、油管颤动是否是因为压力变动大,不稳定引起的。
1. Is the tubing tremor due to pressure fluctuation and instability?
2、先导滤芯有阻塞的现象,应常常清洗,以防阻塞;
2, pilot filter block phenomenon, should often be cleaned, to prevent obstruction;
3、查看安全电磁阀开关是否切换反常。
3, to see whether the safety solenoid valve switch is abnormal.
假如断定液压泵响声不正常,应从以下方面考虑:
If we conclude that the noise of the hydraulic pump is abnormal, we should consider it from the following aspects:
1、是否使用的正品的液压油以及液压回油滤芯;
1, whether the use of genuine hydraulic oil and hydraulic oil filter cartridge;
2、液压油污染严峻;挖掘机需求定时进行保养,特别是常常进行破碎作业更是要留意液压油的污染状况,主张一般5000小时替换一次液压油,打破碎600小时就应进行替换,因为油的污染,难以达到应有的光滑及维护作用;
2. Hydraulic oil pollution is serious. Excavators need regular maintenance, especially when breaking operations. It is necessary to pay attention to the pollution of hydraulic oil. It is advocated that hydraulic oil should be replaced once in 5000 hours and 600 hours after breaking, because oil pollution is difficult to achieve its due smooth and maintenance function.
3、油路不畅通,可能为液压油缺乏或吸油滤芯阻塞,吸入空气后形成对泵的损伤;
3. The obstruction of oil passage may be due to lack of hydraulic oil or blockage of oil-absorbing filter element, which may cause damage to the pump after inhaling air.
4、液压泵装置精度不够;
4, the accuracy of the hydraulic pump is not enough.
5、调节器和电磁阀部分作业不正常,不能将液压泵的斜盘视点调整到需求的视点,引起液压泵输出的流量不能与需求的流量匹配,形成泵的异响;
5. The regulator and solenoid valve are not working properly. They can not adjust the angle of the swashplate of the hydraulic pump to the point of view of the demand, which causes the output flow of the hydraulic pump not to match the flow of the demand, thus forming the abnormal sound of the pump.
6、因为不标准作业或超负荷运转,形成对液压体系冲击过大,泄压阀发生泄压声;
6. Because of non-standard operation or overload operation, the hydraulic system is impacted too much, and the pressure relief valve produces pressure relief sound.
7、热机时刻缺乏时就进行作业,热机缺乏会形成液压油粘度较高,影响
7, when the lack of heat engine operation, lack of heat will form a higher viscosity of hydraulic oil.
其流动性,形成对泵的冲击过大。
Its liquidity is too large for pump impact.
以上信息由加长臂挖掘机整理发布如需要合作或了解请点击我们的网站:谢谢!
If you need cooperation or understanding, please click on our website: . Thank you.

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