Jib crane boom margins mainly use (pitching) rotation around the vertical axis with lifting goods, the use of flexible action to meet the loading requirements, in the form of fixed, mobile and floating. Fixed jib crane mounted directly on the dock or pier base library field, can only work in situ. Some of the boom is not only pitching rotation, and some can tilt can be reversed.
2013年12月25日星期三
Hoist bridge crane
Gourd refers to electric hoist bridge crane for lifting mechanism of bridge crane, mainly for small tonnage (less than 10 t) and use frequency sino hoist lifting work sites. Because of its convenient operation and maintenance, lightweight flexible, price is low, so in the light industry, chemical industry, machinery and other industries are widely used in lifting operation. This kind of crane is the ground operation more, generally a professional life is the number, or do not need specialized personnel operation, so the scene, there are many unsafe hidden trouble easily. Of course, not only the hoist bridge crane prone to hidden trouble, some hoist gantry crane types of crane is the existence of insecurity. Lifting equipment common accident features: accident consequences; Accidents have frequent sex, concentration and sudden; The accident types associated with the kinds of hoisting equipment; Accident injury crisis of range and concentration. Caused the main reason of the accident has the following several aspects: mechanical operation personnel in operation and maintenance of the violations; The negative impact of the mechanical work environment in there are obstacles on the run, for example, in the job site along with high; Mechanical equipment itself safety performance is not good. It might be against standard design, manufacture or installation problems left by the bad; Natural phenomena occur suddenly. Such as earthquakes, floods, etc.
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