桥式抓斗卸船机不同形式的比较

Comparison of Different Types of Bridge Grab Bucket Ship Unloader

桥式抓斗卸船机主要有自行小车式和钢丝绳牵引小车式2种形式。钢丝绳牵引式又分为单索起升单索开闭单小车牵引式、主辅小车牵引式、机械差动四卷筒牵引式、电差动四卷筒牵引式等形式,它们各有优劣,主辅小车牵引式被证明是最可靠的形式。

There are two kinds of trolleys in bridge grab bucket ship unloder, power provided and non power provided trolleys. The later one is divided into 5 types such as single trolley with single hoisting rope and single grabbing rope, double trolley with king and auxiliary ones, four drum driven trolley with mechanical differential, and four drum driven trolley with motor differential. They have their advantages and disadvantages respectively. The double trolley is certificated as a most reliable one.