Portal of bucket wheel stacker reclaimer

Abstract

The invention relates to a new structure form of a portal of bucket wheel stacker reclaimer. When a ring beam is a ring box type beam, two web plates have different heights. One side of an upper wing plate is directly welded to the side face of the higher web plate, another side of the upper wing plate is welded to the upper side of the other web plate, an annular steel plate is welded on the higher web plate to form an annular I-shaped beam structure form, a series of reinforcing rib plates are welded under the I-shaped beam, the reinforcing rib plate and the upper wing plate can be spaced from each other or in small-range contact, and the reinforcing rib plate is made as approximate right triangle whose right angle side is welded on a reinforcing I-shaped beam. According to the invention, a connection housing washer is omitted, a force transfer path is reasonably set, the structure has good stressed condition, safety and reliability are high, materials are saved, and welding and machining operation are reduced to save materials and detection costs of welding and weld seam quality and prolong the service life of a crossed roller bearing.

Description

technical field [0001] The invention is suitable for the main girder of the portal seat in the bucket-wheel stacker-reclaimer, especially for the main beam of the portal seat of the large-tonnage bucket wheel machine, and belongs to a new structural form. Background technique [0002] Bucket wheel stacker and reclaimer is a large-scale bulk material continuous conveying machine widely used in steel mills, power plants, ports, docks, etc., for stacking ore, coal, coke, sand and other materials. The bucket wheel stacker and reclaimer is composed of bucket wheel mechanism, front arm frame, front arm frame belt conveyor, column, pitching system, slewing platform, slewing mechanism, door seat, walking mechanism, tail car and many other components. The bucket wheel stacker and reclaimer is a large and heavy machine. The weight of the whole machine is generally more than 200 tons, or even more than 1,000 tons. It can be seen that the weight of the whole machine is very large. Wher...

AI Technical Summary

Problems solved by technology

[0004] From the above analysis, it can be seen that although there are many structural forms of the door seat, the stress condition of the door seat in the structural form of four legs, side three legs, and positive three-point support four legs is not good. It may cause damage to the whole machine and cause personal safety accidents to installers and operators due to insufficient strength.

The door seat in the form of bench beam structure is good in force, but consumes materials

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