Electric double girder gantry crane structure

Electric double girder  sino hoist ,  you understand its structure and install it? So Xiaobian for everyone answering questions, elaborate explanation, I hope readers will know after reading the electric double girder gantry crane structure and how to install.
First, the structure
Electric double girder   overhead bridge crane   by a traveling mechanism, under beams, legs, cab, main beam, trolley traveling mechanism, hoisting mechanism, escalators, electrical and other such components, following on to a brief introduction.
1 traveling mechanism
Mainly by the lower beam and carts, of which the trolley and wheel set and driven by the active group constituted wheels run institutions, including motor, reducer, gear and wheel sets and other components.
2 legs
With steel as the material, then welded into a cage body, the bottom and the lower beams connected with the upper end of the main beam bolts through the flange connection.
3 cab
Skeleton with steel shell is made of thin steel plate welded to the frame, the driver chamber adopts closed polyline, steering mechanism appliances, power distribution cabinets and line are generally located in the cab.
4 main beam
Steel and welded steel plate welded truss is generally triangular in the main beam, as well as trolley rails.
5 trolley institutions
Major parts and traveling mechanism similar to motor through reducer drive, the pinion gear then passed on the large gear, steel crane  enabling the car to and from driving.
6 hoisting mechanism
Is installed in the car rack by winches and supporting fixed pulley, movable pulley or hook to achieve the lifting movement.