Ruční přenosný stavitelný jeřáb

Abstract

Dissertation deals on construction of crane. There are four alternatives. There are options for power from the burdensome load 350 kg or 125 kg and each of these variations is further divided according the imposition of a crane, solving with extréme positions maximum anf minimumsetout. In all cases is used a similar structure. The thesis contains a static calculation, which solves the size of active forces acting on the shoulder and a chain, then the resulting responseand torque on pillar. Another filling is the task, where for example assesses the tap connection to the arm pillar, then fine weld joints, chain and shoulder for props. To achieve completeness of the settings, thesis also contains background research, assessment of welding technology etc.