什么样的挖掘机能改装成加长臂挖掘机? - 常见问题

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常见问题

什么样的挖掘机能改装成加长臂挖掘机?

日期:2020-04-10   来源:http://www.rbaras.com
一、什么样的挖掘机可改装成长臂挖掘机
1、 What kind of excavator can be refitted into long arm excavator
新机不建议改装,因为改装成挖掘机加长臂以后,挖掘机负荷增大,况且没过保修期容易与原厂产生售后服务的纠纷;五成新以下的机也不建议改装,因为机器使用年限比较旧,各方面性能减退,加上加长臂本身的重量,很难发挥出加长臂挖掘机应有的效率,比较好的是5-8成新的挖掘机改装成挖掘机加长臂。
It is not recommended to refit the new machine, because the load of the excavator increases after it is refitted into an extension arm of the excavator, and it is easy to have disputes with the original factory after the warranty period expires; it is also not recommended to refit the machine less than 50% new, because the service life of the machine is relatively old, the performance of all aspects is reduced, and the weight of the extension arm itself, it is difficult to give full play to the efficiency of the extension arm excavator The good thing is that 50-80% of the new excavators have been converted into excavator extension arms.
二、挖掘机加长臂的使用范围
2、 The application range of excavator's extension arm
挖掘机加长臂有两段式加长臂和三段式加长臂,两段式加长臂主要适用于土石方基础和深堑挖掘作业,河道清淤;三段式挖掘机加长臂主要适用于高层建筑的拆卸等工程,根据杠杆原理和力学原理,加长臂挖掘机的受力比原来减少,应该尽量不要去重作业的场合施工。
加长臂挖掘机
The extension arm of excavator has two-stage extension arm and three-stage extension arm. The two-stage extension arm is mainly used for earth rock foundation and deep cutting excavation, river dredging; the three-stage extension arm of excavator is mainly used for demolition of high-rise buildings and other projects. According to the principle of leverage and force theory, the force of the extension arm excavator is less than the original, so it should not be used in heavy work as much as possible Work.
行走跑偏故障:
Travel Deviation fault:
当挖掘机加长臂出现行走跑偏故障时首先应当对挖掘机组合阀进行检查,拆卸其限压阀上的2根油管,用堵头堵住出油口,启动发动机,拉动有堵头组合阀的行走操纵手柄挖掘机加长臂,检测油压正常;再拆卸另一侧行走组合阀上的2根油管,再次启动发动机,观察其限压阀的2个油孔是否存在油液流出,若无此现象,则排除组合阀故障问题,这时我们应当对回转接头进行检查。
When the travel deviation of the excavator's extension arm occurs, first check the combined valve of the excavator, dismantle the two oil pipes on the pressure limiting valve, plug the oil outlet with a plug, start the engine, pull the travel control handle of the combined valve with a plug, and then check that the oil pressure is normal; then dismantle the two oil pipes on the other side of the travel combined valve, start the engine again, and observe Check whether there is oil flow out of the two oil holes of the pressure limiting valve. If there is no such phenomenon, eliminate the fault of the combination valve. At this time, we should check the swivel.
由于回转接头处油道众多,油道间易发生串通,因此我们可先将挖掘机加长臂行走马达油管拆卸2个,随后将其中1个马达油管,此动作操作完毕后,再次启动发动机,拉动堵死油管马达的换向阀,观察其油液压力是否过低且是否存在液压马达的油孔油液流出,若存在则视为回转接头的油道密封问题,须将其更换后,故障方可解除。
Since there are many oil channels at the rotary joint, the oil channels are easy to cross, so we can first remove two oil pipes of the excavator's long arm travel motor, and then remove one of the motor oil pipes. After this operation, start the engine again, pull the reversing valve that blocks the oil pipe motor, and observe whether the oil pressure is too low and whether there is oil flow out of the oil hole of the hydraulic motor. If there is any oil in the oil pipe motor, remove the oil pipe It is regarded as the sealing problem of the oil passage of the rotary joint, and the fault can be removed only after it is replaced.
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