長臂挖掘機

省時 省力 省財富

一：伸縮臂挖掘機分類

1： Classification of telescopic excavators

按其結構外型可分為：外伸縮和內伸縮; 外伸縮是通過伸縮缸及滑塊的作用使移動體在固定體上方使其自由伸縮。內伸縮是移動體套入固定體內，通過伸縮缸的伸縮使移動體伸出及縮回

According to its structural appearance, it can be divided into: external expansion and internal expansion; External expansion and contraction is achieved by the action of the expansion cylinder and slider to allow the moving body to freely expand and contract above the fixed body. Internal expansion and contraction refers to the insertion of a moving body into a fixed body, and the extension and retraction of the moving body are achieved through the expansion and contraction of the expansion and contraction cylinder

按其工作原理可分為：順序伸縮和同步伸縮。順序伸縮采用多級缸或多個單級缸等方式直接用油缸推動;同步伸縮采用單缸加鋼絲繩、滑輪組件實現伸縮。

According to its working principle, it can be divided into sequential scaling and synchronous scaling. Sequential expansion and contraction are directly driven by oil cylinders using methods such as multi-stage cylinders or multiple single-stage cylinders; Synchronous expansion and contraction is achieved by using a single cylinder with steel wire rope and pulley components.

二：伸縮臂挖掘機特征

2： Features of telescopic excavator

外伸縮臂其特征主要在於：

The main characteristics of extending and retracting the arm are:

1、外伸縮臂由上滑動臂與下固定臂兩部分構成，上滑動臂安裝在下固定臂上方，通過兩側滾輪及道軌上下組成活動體，通過伸縮缸的伸縮來推動上滑動體前後自由伸縮。

1. The outward extension and contraction arm consists of two parts: an upper sliding arm and a lower fixed arm. The upper sliding arm is installed above the lower fixed arm and forms a movable body through the rollers on both sides and the track up and down. The upper sliding body is pushed forward and backward freely through the expansion and contraction of the telescopic cylinder.

2、上滑動臂內裝伸縮缸，伸縮缸的缸體固定在下固定臂上，伸縮缸活塞杆固定在上滑動臂上。其主要部件有：固定體、移動體、滑塊、伸縮缸等。外伸縮臂具有受力大、結構簡單，能夠自由調整工作半徑、調整挖掘深度，易於操作，適應特定環境作業。但其行程較小，一般其行程在4米內。

2. The upper sliding arm is equipped with a telescopic cylinder, the cylinder body of the telescopic cylinder is fixed on the lower fixed arm, and the piston rod of the telescopic cylinder is fixed on the upper sliding arm. Its main components include: fixed body, moving body, slider, telescopic cylinder, etc. Extending and retracting the arm has the advantages of high stress, simple structure, and the ability to freely adjust the working radius and excavation depth. It is easy to operate and suitable for specific environmental operations. But its itinerary is relatively small, usually within 4 meters.

內伸縮臂其特征主要在於：

The main characteristics of the internal telescopic arm are:

1、 內伸縮臂是由移動體套入固定體內，通過伸縮缸的伸縮使移動體伸出及縮回，從而達到自由伸縮的目的;

1. The internal telescopic arm is inserted into a fixed body by a moving body, and the moving body is extended and retracted through the expansion and contraction of the telescopic cylinder, thereby achieving the goal of free expansion and contraction;

2、 其結構隻有一個固定體和一個或多個移動體，節為固定體，其餘的是移動體，移動體按其大小先後順序套入固定體內，原理是二節套入一節、三節套入二節….，通過伸縮缸使其有順序伸出或縮回;內伸縮臂其結構較複雜、生產成本較高，一般設計成兩節以上，用於深坑作業的抓取與揚土。其優點是增大了作業半徑以及挖掘深度。

2. Its structure consists of only one fixed body and one or more moving bodies. The first section is a fixed body, and the rest are moving bodies. The moving bodies are inserted into the fixed body in order of their size. The principle is that two sections are inserted into one section, and three sections are inserted into two sections, Extend or retract in sequence through the telescopic cylinder; The internal telescopic arm has a complex structure and high production cost. It is generally designed to have more than two sections and is used for grabbing and lifting soil in deep pit operations. Its advantage is that it increases the working radius and excavation depth.