Introduction and types of cranes

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European crane use common concepts depicted with scales small, light weight, small wheel pressure characteristics. Compared with conventional cranes, hook to the limit of the wall spacing minimum headroom minimum, Keli crane more jobs near the front, lifting height higher practice increases the existing plant useful work space. Because the crane is light weight, small wheel pressure characteristics, the new plant can be depicted in a smaller space, function more fully. Means the initial establishment of a smaller plant funded and long heating, air conditioning and other protective fees can save a substantial amount of money.
Usually by a crane lifting arrangement (the items up and down movement), operating arrangement (the lifting move), horn arrangements and reverse arrangement (the article for horizontal move), plus metal arrangements, power equipment, operating rigging and equipment necessary adjuvant combination. Attachment: Cranes in the study can be seen as a physical hard lever!
Bridge engineering used in lifting machinery, based on their structure and function is not the same, usually divided into small light lifting equipment, overhead type crane and jib type crane three categories. Small light lifting equipment such as: jacks, pneumatic hoists, electric hoists, balancing hoists (also known as balance suspended), winches, etc.. Girder bridge type lifting machinery such as cranes, gantry cranes. Fixed jib type crane, such as reverse cranes, tower cranes, truck cranes, truck cranes, crawler cranes. Must be promoted in the range of straight and horizontal transfer of many initiatives to lifting heavy objects. Also known as the crane. Attributed to material transfer machinery. Crane operation is characterized by intermittent exercise to do,