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颚式抓斗主要用来装卸散料。在疏浚河道及开挖中小型码头等水下工程中,亦被广泛应用。1 常用颚式抓斗的缺点图1为常用双颚式抓斗。它用两根独立的开闭绳和起升绳来控制抓斗启闭。
Bucket grabs are mainly used for loading and unloading bulk materials. It is also widely used in underwater engineering such as dredging rivers and excavating small and medium sized wharfs. 1 Disadvantages of commonly used rake grabs Fig. 1 shows the common rake grabs. It uses two separate opening and closing ropes and lifting ropes to control the opening and closing of the grab.