内弹性臂是由移动体套入固定体内，经过弹性缸的弹性使移动体伸出及缩回，然后达到自由弹性的目的
The inner elastic arm is sleeved into the fixed body by the moving body, extends and retracts the moving body through the elasticity of the elastic cylinder, and then achieves the purpose of free elasticity
其结构只有一个固定体和一个或多个移动体，首节为固定体，其余的是移动体，移动体按其大小先后顺序套入固定体内，原理是二节套入一节、三节套入二节等以此类推，经过弹性缸使其有顺序伸出或缩回;内弹性臂其结构较杂乱、生产成本较高，一般设计成两节以上，用于深坑作业的抓取与扬土。长臂挖掘机脱链的原因如果驱动马达齿圈出现比较严重磨损的话，那么我们一定要及时的进行更换，不然长臂挖掘机也是会出现脱链的情况。
Its structure has only one fixed body and one or more moving bodies. The first section is the fixed body, and the rest is the moving body. The moving body is sleeved into the fixed body according to its size order. The principle is that two sections are sleeved into one section, three sections are sleeved into two sections, and so on, which are extended or retracted in sequence through the elastic cylinder; The inner elastic arm has messy structure and high production cost. It is generally designed into more than two sections for grasping and lifting soil in deep pit operation. Reasons for chain breaking of long arm excavator if the driving motor gear ring is seriously worn, we must replace it in time, otherwise the chain breaking of long arm excavator will also occur.
华体会国际 ，它是在车体支架及作业臂之间，加装一个加长臂，加长臂由油缸支撑衔接，并在加长臂上加装了一个作业臂油缸及发掘斗油缸。通常托链轮油封出现漏油的情况，那么就会导致托链轮出现比较严重的磨损，那么就会导致我们的履带出现脱链的情况。在驾驶室内外，相应的加装了一套油缸的操作系统，配合操作作业臂油缸及发掘斗油缸的伸缩作业，可使挖掘斗的活动范围扩展一倍以上，到达的范围更高、更深、更远，特别习惯矿山、码头、仓储及特别的场合作业，是挖掘机械的一大突破性改造，具有极大的实用价值。

The lengthening arm excavator is equipped with an lengthening arm between the vehicle body support and the operation arm, which is supported and connected by the oil cylinder, and an operation arm oil cylinder and an excavation bucket oil cylinder are installed on the lengthening arm. Usually, the oil leakage of the carrier roller oil seal will lead to serious wear of the carrier roller, which will lead to the derailment of our crawler. A set of oil cylinder operating system is installed inside and outside the cab to cooperate with the telescopic operation of the oil cylinder of the operating arm and the oil cylinder of the excavation bucket, which can more than double the activity range of the excavation bucket and reach a higher, deeper and farther range. It is especially used to working in mines, docks, storage and special occasions, which is a breakthrough transformation of the excavation machinery, It has great practical value.
正确进行施工组织设计：长臂挖掘机配合的自卸车数量及承载能力应满足挖掘机生产能力的要求，且自卸车的容量应为挖掘机铲斗容量的整数倍。模式选择是微操作或操作简单，从而降低发动机转速，减少了主泵的流量。同时尽量采用双放装车法，使长臂挖掘机装满一辆，紧接着又装下一辆，由于两辆自卸车分别停放在挖掘机铲斗卸土所能及的圆弧线上，这样铲斗顺转装满且车，反转又可装满另一车，从而提高装车效率。
Correct construction organization design: the number and bearing capacity of dump trucks matched with long arm excavator shall meet the requirements of excavator production capacity, and the capacity of dump truck shall be an integral multiple of excavator bucket capacity. The mode selection is micro operation or simple operation, which reduces the engine speed and reduces the flow of the main pump. At the same time, the double release loading method shall be adopted as far as possible to make one long arm excavator full and then another one loaded. Since the two dump trucks are parked on the arc line within the reach of the excavator bucket for soil unloading, the bucket can be loaded in a clockwise direction and the truck can be loaded in a reverse direction, so as to improve the loading efficiency.
华体会国际 的技术状况对其生产率有较大影响，特别是发动机的动力性。此外，斗齿磨损时铲斗切削阻力将增60％-90％，因此磨钝的斗齿应予以更换。
The technical status of the extended arm excavator has a great impact on its productivity, especially the power of the engine. In addition, when the bucket teeth are worn, the bucket cutting resistance will increase by 60% - 90%, so the blunt bucket teeth should be replaced.
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