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挖掘机常见到的故障是怎样的?

日期:2022-09-23   来源:http://www.dybocheng.com
实际上挖掘机的故障是一件非常烦恼的事情,自行学会故障检查能减少很多不必要的损失。以下这三种常见故障一定要知道,下面一起跟随长臂挖掘机厂家看看吧。
In fact, the failure of excavator is a very troublesome thing. Learning to check the failure by yourself can reduce many unnecessary losses. The following three common faults must be known. Let's follow the long arm mining manufacturer.
1、照明灯故障
1. Lamp fault
照明灯的故障,如果不是高压熔断器出了问题,那便是电路问题。通用检测工具是万用表,检查高压熔断器保险丝是否烧坏,如果是高压熔断器烧坏了那便需要直接更换同规格的高压熔断器。
If the fault of the lighting lamp is not caused by the high-voltage fuse, it is a circuit problem. The universal detection tool is a multimeter to check whether the high-voltage fuse is burnt out. If the high-voltage fuse is burnt out, it is necessary to directly replace the high-voltage fuse of the same specification.
如果高压熔断器是正常工作的,那么二步便是进行电路故障排查。电路故障比较麻烦,同样用到的工具也是万用表。一般容易故障的线路处有线束插头、照明灯继电器、开关接触处等,多方位排查,找出线路故障所在。
If the high-voltage fuse operates normally, the second step is to troubleshoot the circuit. The circuit fault is troublesome, and the same tool is a multimeter. Generally, there are harness plugs, lighting relays, switch contacts, etc. on the lines that are easy to fail. Conduct multi direction troubleshooting to find out the fault of the lines.
有时也存在灯泡坏了、导线老化、变压器故障等问题,只要找出故障点,及时更换相应部件即可。除了物理故障,有时也存在一些人为故障,比如灯泡没有拧紧、插座松动等,也需要注意。
Sometimes there are problems such as broken bulbs, aging wires, transformer faults, etc., as long as the fault point is found and the corresponding parts are replaced in time. In addition to physical faults, sometimes there are also some man-made faults, such as untightened bulbs, loose sockets, etc., which also need attention.
2、常见铅酸蓄电池故障
2. Common lead acid battery failure
铅酸蓄电池的故障分两个维度,外部故障和内部故障。
The failure of lead-acid battery is divided into two dimensions, external failure and internal failure.
外部故障主要是指蓄电池的外壳破损、封胶口破损等引起的故障。由于这些情况的发生,电解液渗漏,无法正常供电。而蓄电池的内部故障主要体现在极板硫化、极板活性物质脱落、极板短路、故障性电解液减少等。在对蓄电池进行维护保养时,检查电解液密度和液面高度,并保证适当的充电,可有效的避免上述情况发生。
External fault mainly refers to the fault caused by the damage of battery shell and sealing rubber port. Due to these conditions, the electrolyte leaks and the power supply cannot be normal. The internal faults of the battery are mainly reflected in plate vulcanization, plate active material shedding, plate short circuit, and the reduction of fault electrolyte. When maintaining the battery, check the electrolyte density and liquid level, and ensure proper charging, which can effectively avoid the above situations.
3、起动系统故障
3. Starting system fault
起动系统一般包括蓄电池、起动机、起动开关、起动继电器等几个部分,常表现为以下三种情况:
The starting system generally includes battery, starter, starting switch, starting relay and other parts, which are usually shown in the following three situations:
长臂挖掘机厂家
(1)起动机不转
(1) Starter does not rotate
起动机不转的话可以逐一排查电源、起动机、起动继电器、点火开关、线路。
If the starter does not rotate, check the power supply, starter, starting relay, ignition switch and circuit one by one.
(2)起动机起动无力
(2) Weak starting of starter
当起动机起动出现转速偏低或停转的情况时,为起动机起动无力。故障原因包含电源故障(蓄电池)、起动机故障、变压器故障、整流元件损坏。该现象的检查方式同上,及时更换维修即可。
When the starter starts at a low speed or stalls, the starter is weak. The failure causes include power failure (battery), starter failure, transformer failure, and damage of rectifier elements. The inspection method for this phenomenon is the same as above, and it can be replaced and repaired in time.
(3)起动机空转
(3) Starter idling
当起动机故障时也可能发生起动机空转的现象,此时起动机旋转速度飞快但却没有带动发动机的曲轴,这表明起动机和线路等部位正常,故障点在传动部位。当传动装置的齿轮和飞轮齿圈严重磨损时,会出现不啮合的现象,也就出现了空转现象,应及时更替和紧固,以保证机械的啮合度。
When the starter fails, the starter may also run idle. At this time, the starter rotates rapidly but does not drive the crankshaft of the engine, which indicates that the starter and the circuit are normal, and the fault point is in the transmission part. When the gear of the transmission device and the flywheel ring gear are seriously worn, the phenomenon of non engagement will occur, which means idling. It should be replaced and fastened in time to ensure the mechanical engagement.
挖掘机电气维修是一项繁杂的工作,一般可以先自行检查,如果无法解决,需要找维修人员进行咨询和维修。及时地发现并解决问题,保证工程进度,大大减少事故发生。更多相关注意事项就来我们网站http://www.dybocheng.com咨询吧!
Electrical maintenance of excavators is a complicated work, which can be checked by yourself first. If it can't be solved, professional maintenance personnel should be consulted and repaired. Find and solve problems in a timely manner to ensure project progress and greatly reduce accidents. More relevant precautions come to our website http://www.dybocheng.com Consult!


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