“A hook block is an assembly to which the hook of a hoist or crane is attached; it typically consists of a steel enclosure housing a number of sheaves or pulleys that carry the ropes or chains that facilitate the lifting of a load.21 ago 2015
What is the hook called on a crane?
lifting hook
What is the use of crane hook?
Crane hooks are used to attach loads to the crane apparatus. Cranes allow people to move materials horizontally, as well as vertically.
What is crane hook used for?
Crane hooks are used to attach loads to the crane apparatus. Cranes allow people to move materials horizontally, as well as vertically. They vary in size from truck-mounted cranes used at work sites to massive equipment designed to move shipping containers in ports.
How do you test a hook on a crane?
Look for any bends, twists, cracks or sharp edges that could cut into your synthetic slings. To check for less-apparent deformities, measure the hook's throat opening. (Note: Typically this is not done during pre-operational inspections.) You should remove the hook from service if any distortion is noticeable.
What is the most suitable section for a crane hook?
It is observed that moment of inertia of trapezoidal section is higher than other section so that it develops minimum stress for the same load conditions. Hence the trapezoidal shape is selected as the best cross sectional shape for the design of crane hook [6].19 may 2020
Which type of cross section is preferred for the crane hook and why it is preferred?
The trapezoidal cross section gives better results in comparison with other two cross sections as because stresses induced are less in trapezoidal cross section. The stresses obtained in theoretical and analytical methods are in good agreement.