Circular design is most efficient considering handling of load as load gets shared through out the structure,this is not possible with any other possible shape such as triangular rectangular as there are vertices present in them were load will get concentrated and will lead to breakage .
are madarchod ans dhoond ke la .........
nai toh hook gand mein dal ke pura India ghumaunga.....
the load capacity distance to be travelled rotational restrictions are to be considered
1. check the hook without load like safety latch of the hook, Sheave for free of jam, Break& distortion of the hook. 2. Check the wire rope any defects like cuts, Distortion and Lubrication condition. 3. Check the structure of the crane like any cracks. 4. Check safety interlocks & limit switches. 5. Check leakages of the reducers & its abnormal noise. 6. check all the functions of the crane with and without load.
Not all cranes are coloured yellow. The reason is that yellow stands out. Lets say this crane is near an airport and there is a low flying plane coming in to land, it is easier for the plane to see this crane. There are other reasons like for design reasons.
the main reason might be that the percentage of carbon increase the hardness of material (steel ) and ductility would decrease
The hook and eye fastener was not invented by a single person. It is a simple design that has been used for centuries, and its origins are not attributed to any one individual. The hook and eye fastener has been used in various cultures around the world and has evolved over time.
Base Mast or tower Jib or working arm Machinery Arm Counter Weights Counter Jib Slewing Unit Operator's Cab Cable Drum Motor Trolley Hook
crane hook is made of quenched & tempered alloy steel.
A crane is a vehicle used to lift things usually with a hook.
casting
It can vary greatly depending on the crane design and size.
Shank Hook Eye Hook
A construction crane uses a large hook, or a wrecking ball.
A crane hook is the hook used on an operating crane. These heavy hooks are usually comprised out of steel material.
trapezoidal cross section
there are lots of different parts of a crane here are some boom arm,base,rotational part,hook and wire
hook
Get a crane hook the car and put it on top of the plane .
MG doublebeam gantry crane with hook is composed of gantry, crane crab, trolley traveling mechanism,cab and electric control system. More information you can find in Azeus Crane Co., Ltd