Crane refers to within a certain range vertical lifting and carrying heavy loads of multi-level action lifting machinery. Also known as the crane. Belong material handling machinery. Crane's work is characterized by intermittent exercise to do that in a work cycle reclaimer, angular contact bearing transport, unloading and other movements of the corresponding bodies are alternately work, development and use of cranes on the market more widely.
Crane hoisting mechanism mainly run institutions, luffing mechanism, slewing mechanism and metal structures. Hoisting mechanism is the basic working body cranes, moThin section bearings stly composed by hanging system and winch, there are lifting weights through the hydraulic system. Run institutions to adjust the vertical or horizontal transport of heavy cranes working position, usually by the motor, reducer, brake and wheel components. Luffing mechanism is equipped with only the jib cranes, jib looked up when the amplitude is reduced, the amplitude increases when bent, sub-balanced and unbalanced luffing luffing two. Slewing mechanism to make the boom swing is determined by the drive and slewing ring device components. Crane metal skeleton structure, the main bearing member such as a bridge, boom and Full complement cylindrical roller bearings mast-shaped structure may be a box or a truss structure, the structure may also be a web, and some can be used as the supporting steel beams.
没有评论:
发表评论