Scraper conveyor re-manufacturing method

Abstract

The invention discloses a scraper conveyor re-manufacturing method. The re-manufacturing method comprises measuring wear failure amounts of all parts of a worn scraper conveyor, and carrying out re-manufacture according to the wear failure amounts, wherein the re-manufacture comprises restoration and / or replacement and the restoration method is a laser cladding method. The method realizes specific surface restoration of a head, a tail, a ramp pan and a middle groove according to a wear degree or replacement of members with high local wear levels, realizes performance recovery, even improves original performances, obviously improves waste and old part utilization rates and reduces resource waste and environment pollution.

Description

technical field [0001] The invention relates to the technical field of remanufacturing of scraper conveyors, in particular to a remanufacturing method of scraper conveyors. Background technique [0002] Scraper conveyor, also known as "scraper machine", is an important coal transportation equipment in coal mining operations at home and abroad. The failure form of scraper conveyor is mainly manifested as wear failure, but the severity of wear of each part is inconsistent. [0003] The nose, tail, transition trough, and middle trough are the fuselage components of the scraper conveyor, accounting for about 80% of the weight of the whole machine. In the harsh working environment underground, in addition to coal transportation, the fuselage components must also bear the operating load of the shearer, the pushing and pulling force of the hydraulic support, the cargo (coal and gangue), the scraper and the The sliding work resistance of the chain in the fuselage, the extrusion an...

AI Technical Summary

Problems solved by technology

There are a large number of used waste components in various coal mines. In actual use, the wear resistance of each part of the fuselage components is inconsistent. When the general machine repair process cannot meet the coal passing requirements of the new working face, it is regarded as having no repair value, resulting in All fuselage components are scrapped as a whole

According to relevant statistics, by 2020, the amount of scrapped scraper conveyors in my country will reach about 200,000 units, and scraper conveyors are entering the peak period of scrapping, except for some major components (such as channel side steel, middle plate, bottom plate, etc.) It is more serious, and the whole still has a great use value. If it is directly scrapped, it will not only cause huge waste, but also cause serious pollution problems

[0005] At present, the repair of waste scraper conveyors at home and abroad is limited to welding repair repair technology, the repair quality is poor, and it is impossible to realize the repeated reuse of the scraper conveyor channel side steel, middle plate or bottom plate and the value of the remaining life.

There is no standard for remanufacturing scraper conveyors at home and abroad. All major coal mines use most of the final wear and tear failure of the bottom plate of the fuselage components to scrap them, and only a small amount of less worn ones are repaired instead of remanufactured.

Therefore, there is currently no real remanufactured scraper conveyor products in the country.

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