What are the points for attention in the course of transportation of double beam cranes?
(L) formulation of transport programmes. According to the basic form of the structural components of the plant and the specific conditions of the lifting equipment and transportation vehicles, a practical, economical and practical shipping scheme shall be worked out.(2) design and manufacture transport rack. A steel or wood carrier (Zhi Chengjia) is designed to produce various types of components according to the weight and size of the components. The utility model has the advantages of simple structure, reasonable and stable loading force, low center of gravity, light weight, steel saving, various types of components, convenient assembly and disassembly.(3) checking the strength of the component. The large roof, multi section columns, according to the shipping program to determine the conditions of crack resistance checking computations component in the most unfavorable section, avoid the cracks at the time of shipment, such as crack resistance is not enough, should reinforce appropriate.
Transportation conditions, transportation conditions, including on-site transportation, road construction, inspection and commissioning, etc..(1) construction of road transportation on site. According to the shipping component vehicle load size, body size, grade and standard requirements to determine the construction of temporary road pavement width and subgrade, pavement structure, construction site of the road transport people.(2) check the routes and routes. Transport drivers in Zhengzhou steel company and the relevant personnel along the exploration of transport routes, smooth road, road slope and road turning radius, or wire obstacles such as bridge and culvert clearance size are higher.(3) test run. The transport frame of the largest size component shall be installed on the vehicle, and the dimensions of the components shall be simulated and tested along the transport road.
The provision of means of transport, including the conveyance of vehicles and lifting tools, materials, etc..(1) the selection of transport vehicles and lifting tools. According to the shape, size and weight of the components, site transportation, lifting tools, road conditions and economic benefits, determine the appropriate type of vehicles and cranes, number of units and mode of shipment.(2) prepare tools and materials for shipment. Such as wire ropes, chains, clasps, baskets, bolts, jacks, flags, mats, boards, old tyres, etc..
Component preparation, component preparation, including component counting, inspection and appearance modification, etc..(1) counting the components, including the type and quantity of the components, checking the order of the components according to the lifting sequence of the components, and determining the sequence of the loading of the components.(2) inspection component. Including size, geometry, the placement of parts and rings, and the stability of the location of the installation hole and the hole through the hole and so on.(3) check the weld seam of the steel structure. Including the weld size, appearance and connections whether the design and specifications meet the requirements, such as beyond the allowable error, should be taken effective measures to deal with.(4) appearance inspection and modification of components. Found defects and damage, such as cracks, pits, broken edge, weld length, height is not enough, weld ash or porosity, should be modified and after welding, to transport and use.
