所以此时，长臂挖掘机采用超长臂和超长杆来显示其动力，在受地面环境限制的疏浚、护岸、边坡和地铁施工条件下发挥着的作用。众所周知，看大型机械作品是每个男人的爱好，是很多从事机械行业的朋友对长臂挖掘机并不陌生。长臂挖掘机常见的应用领域如下：一。两段伸缩臂其适用范围相对较大，但其主要功能只是开挖半径，主要用于河道清扫、土地复垦、地铁出入口开挖、行人过街、公路护壁修补、一般住宅运输水泥等。
Therefore, at this time, the long arm excavator uses super long arm and super long rod to show its power, which plays an important role in dredging, revetment, slope and subway construction limited by the ground environment. As we all know, watching large mechanical works is every man's hobby. It is a lot of friends engaged in the machinery industry. They are no strangers to long arm excavators. The common application fields of long arm excavator are as follows: 1. The scope of application of the two-stage telescopic boom is relatively large, but its main function is only the excavation radius. It is mainly used for river cleaning, land reclamation, subway entrance and exit excavation, pedestrian crossing, highway retaining wall repair, general residential transportation of cement, etc.
有些人用他的前破碎锤搬家，但很危险。一般情况下，两级动臂在10-26m间隔内有许多改装。三段伸缩臂或多级伸缩臂。主要用于高层建筑的拆除，预破碎锤或液压钳。20-28米范围内有很多用户。滑臂或内伸臂：它主要是针对转弯半径很。
Some people move with his front breaking hammer, but it's dangerous. Generally, the two-stage boom has many modifications in the interval of 10-26m. Three section telescopic boom or multi-stage telescopic boom. It is mainly used for demolition of high-rise buildings, pre crushing hammer or hydraulic tong. There are many users within 20-28 meters. Sliding arm or inner extension arm: it is mainly aimed at turning radius.
各方面性能较差，而且长臂本身也有一定的重量，所以很难发挥长臂挖掘机应有的效率。木材抓斗、物料抓斗输煤机伸缩臂：通常，它是为火车或汽车的装卸而设计的。一般来说，大臂是7.6米，小臂是5-6米。前抓斗、钳子或挖壳机。挖掘机大、小臂改装的前提是考虑动力、液压和配重衡等几个方面。
The performance is poor in all aspects, and the long arm itself has a certain weight, so it is difficult to give full play to the due efficiency of the long arm excavator. Telescopic boom of wood grab, material grab and coal conveyor: usually, it is designed for loading and unloading of trains or cars. Generally speaking, the upper arm is 7.6m and the lower arm is 5-6m. Front grab, pliers or shell digging machine. The premise of refitting the excavator boom and jib is to consider the aspects of power, hydraulic pressure and counterweight scale.

的方法是将5-80%的新挖掘机改装成长臂挖掘机。旧挖掘机伸缩臂改装应注意的问题将旧挖掘机标准臂改装成挖掘机伸缩臂时，要测量挖掘机的性能，如液压输出是否达到一定压力；行走机构和转盘结构是否能承受挖掘机伸缩臂，伸缩臂的长度等手臂能承受吗。
The method is to refit 5-80% of the new excavators into long arm excavators. Problems needing attention in refitting the telescopic arm of the old excavator when refitting the standard arm of the old excavator into the telescopic arm of the excavator, first measure the performance of the excavator, such as whether the hydraulic output reaches a certain pressure; Whether the traveling mechanism and rotary table structure can bear the telescopic arm of the excavator and the length of the telescopic arm.
旧挖掘机的使用寿命和施工时间直接影响到挖掘机本身的性能，如无挖掘力、起重臂薄弱、行走等，由于这些原。
The service life and construction time of the old excavator directly affect the performance of the excavator itself, such as no excavation force, weak jib, walking, etc.
从而失去工作，减小转弯角度降低挖掘机的转向角，降低装载自卸汽车时的转向角，可以缩短工作周期，增加单位时间的工作量，从而油耗效率，这也是有效的省油方法，许多经营者正在进行装载作业，这往往是意想不到的，所以他们花了一部分不合理的燃料钱。
So as to lose work, reduce the turning angle, reduce the steering angle of excavator and reduce the steering angle when loading dump truck, which can shorten the working cycle and increase the workload per unit time, so as to improve the fuel consumption efficiency. This is also an effective fuel-saving method. Many operators are carrying out loading operation, which is often unexpected, so they spend some unreasonable fuel money.
顺序采用多级缸或多个单级缸由油缸直接推动；同步采用单缸加钢丝绳及滑轮组件实现。长臂挖掘机租赁伸缩式挖掘机的特点伸缩臂的主要特点是：伸缩臂由上滑臂和下固定臂两部分组成。上滑臂安装在下固定臂的上方。活动体由滚轮和轨道的两侧组成。上滑动体通过缸的自由地前后推动。
Multistage cylinders or multiple single-stage cylinders are used in sequence, which are directly pushed by the oil cylinder; Synchronization is realized by single cylinder, steel wire rope and pulley assembly. The main characteristics of the telescopic boom are that the telescopic boom is composed of an upper sliding arm and a lower fixed arm. The upper sliding arm is installed above the lower fixed arm. The movable body is composed of rollers and two sides of the track. The upper sliding body is pushed back and forth freely through the of the cylinder.
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