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在工业部门以及运输和建筑施工中广泛地使用起重机提升和搬运负载,起重机的工作机构使负载在三个互相垂直的方向移动。提升机构用来提升,在桥式超重机上用小车和大车的行走来搬运负载;在臂架式旋转起重机上利用旋转机构、变幅机构或悬臂式小车来实现负载的平移。起重机只有具备可靠的制动器,才能保证运行机构的准确和安全。
Lifting and handling of loads are widely used in the industrial sector as well as in transportation and construction, and the working mechanisms of the cranes move the load in three mutually perpendicular directions. The hoisting mechanism is used for lifting. The trolley and the trolley are used to carry the load on the bridge overweight crane. The rotating mechanism, the luffing mechanism or the cantilever trolley is used on the jib slewing crane to realize the translation of the load. Crane only with reliable brakes in order to ensure the accuracy and safety of the operating mechanism.