长臂挖掘机，由工作臂、加长臂、原油缸、工作臂油缸、挖掘斗油缸等组成，其特征是:在车体支架.上端,动配合的连接--个加长臂,加长臂的下侧面与原油缸相连接，加长臂前端通过销轴与工作臂的一- 端动配合连接，工作臂与加长臂之间安装-一个工作臂油缸。在工作臂的前端有一个挖掘斗，挖掘斗- -侧通过连杆与挖掘斗油缸的一.端连接，挖掘斗油缸的另一端通过销轴与加长臂动配合连接。
The long-arm excavator is composed of the working arm, the extension arm, the original oil cylinder, the working arm oil cylinder, the bucket oil cylinder, etc. Its characteristics are: at the upper end of the vehicle body bracket, the dynamic fit is connected with one extension arm, the lower side of the extension arm is connected with the crude oil cylinder, the front end of the extension arm is connected with the one-end dynamic fit of the working arm through the pin shaft, and between the working arm and the extension arm, a working arm oil cylinder is installed. There is a bucket at the front end of the working arm. The bucket -- side is connected with one end of the bucket cylinder through a connecting rod, and the other end of the bucket cylinder is connected with the boom boom through a pin.
挖掘机加长臂在施工中有以下的特点:
The following features of the excavator extension arm during construction:
(1)机械化程度高，需要劳动力少，施工组织简单;施工效率高，工程进度快; .
(1) High degree of mechanization, less labor required and simple construction organization; High construction efficiency and fast project progress
(2)加长后的臂对挖掘机质量要求比较严格，也可以说臂是对挖掘机质量的一-次检验， 在动
(2) The lengthened arm has strict requirements on the quality of the excavator. It can also be said that the arm is a one-time inspection of the quality of the excavator
作过程中不易离析，因此容易保证工程质量:
It is not easy to segregate during construction, so it is easy to ensure the project quality:
(3)作业，可减少施工过程中的危险:
(3) Operation safety can reduce risks during construction:
(4)对施工作业面的适应性强，作业范围广，挖掘机加长臂可以铺设到其他难以到达的地方，
(4) It has strong adaptability to the construction working surface and a wide range of operations. The excavator extension arm can be laid to other places that are difficult to reach,
满足各种施工要求;
Meet various construction requirements;
(5)在正常工作条件下，挖掘机加长臂在不会污染环境，符合要求。
(5) Under normal working conditions, the extended arm of the excavator will not pollute the environment and meet the environmental protection requirements.
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