Engineering machinery bucket tooth induction heating structure repairing device and method

Abstract

The invention discloses an engineering machinery bucket tooth induction heating structure repairing device and method. The engineering machinery bucket tooth induction heating structure repairing device comprises a folding coil, bucket teeth, supercharging balls, a water spraying cooling bin and the like, wherein a structure repairing layer is formed on the surface of the sharp portion of bucket teeth through induction heating of the folding coil; the upper end face and the lower end face of the folding coil are fixedly connected with positive and negative connection boards capable of making currents; cooling water flows in the water spraying cooling bin; grooves formed in the two end faces of the water spraying cooling bin are correspondingly provided with rotary shafts; each rotary shaftis provided with the two supercharging balls; each supercharging ball corresponds to a protrusive hemisphere ejector; the shaft shoulder position of each rotary shaft is fixedly provided with a rotary sliding bearing; each sliding bearing is installed in the grooves in the horizontal fracture surfaces of two sides of the corresponding supercharging ball and is in rolling connection with the corresponding rotary shaft fixedly; the cooling water inside the water spraying cooling bin flows in the pressure water flow direction; and cooling bin water ports are formed in the upper end face and thelower end face of the water spraying cooling bin. The engineering machinery bucket tooth induction heating structure repairing device and method not only ensure normal changes of the structure of therepairing layer, but also save energy resources.

Description

technical field [0001] The invention relates to the technical field of material processing technology, in particular to an induction heating tissue repair device and repair method for bucket teeth of engineering machinery. Background technique [0002] Construction machinery is widely used in mining, civil engineering, water conservancy and national defense projects. The bucket tooth is one of the vulnerable parts of the excavator, which accounts for a large proportion of the production cost. Therefore, whether its use is reasonable or not is crucial to reducing production costs. Improving equipment efficiency is of great significance. Bucket teeth work under harsh conditions and require extremely high wear resistance and toughness. The material generally used is high manganese steel or alloy steel. The generally used process is casting-quenching and tempering heat treatment-combination, but this manufacturing process It still cannot meet the needs of the bucket tooth worki...

AI Technical Summary

Problems solved by technology

Bucket teeth work under harsh conditions and require extremely high wear resistance and toughness. The material generally used is high manganese steel or alloy steel. The generally used process is casting-quenching and tempering heat treatment-combination, but this manufacturing process It still cannot meet the needs of the bucket tooth working environment, especially the variable load on the tip of the bucket tooth is more serious, but its internal structure is relatively thick, which does not match the load received, and now induction heating technology is used in material processing in China It is widely used and has a considerable effect on microstructure. In addition, it has the advantages of short action time. It is popular in the heat treatment fields of steel pipes and gears. It is applied to the heat treatment of bucket teeth to control the temperature (heating time) change and control If the internal austenite re-grows well, the refined bucket teeth can be obtained; and now the development of materials is greatly affected by the cooling rate, the growth of the material structure is limited by technology, and the function of the tissue regeneration equipment is single, heating, heat preservation, and cooling Controllable factors such as bucket teeth are easily overlooked, which makes the final material processing equipment relatively rough, which greatly restricts the development of the current new material field. The bucket tooth material is special, mostly high-manganese steel series. The working environment is harsh, the working time is long, and replacement is difficult. Restricts the development of engineering, so the development of bucket teeth tissue materials is crucial to the development of construction machinery

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