Structure design of specialized horizontal grinding equipment for the machining of gas turbine blade tips
The processing of the blade tip of heavy-duty gas turbine rotating blades is a key procedure in blade shap-ing.The accuracy of this process determines the gap between the blade tip and other components,which may affect the working efficiency of the gas turbine.Therefore,the critical dimension of the blade tip distance from the rotor cen-ter rotation radius needs to be precisely controlled.However,the rotation radii of rotating blades vary across different specifications and power ratings of gas turbines,necessitating the design of automated equipment capable of accom-modating blade tips with varying rotation radii.Given the hardening characteristics,poor thermal conductivity,and high cutting force associated with machining high-temperature nickel-based alloy blades,and considering the low effi-ciency,rapid tool wear,and high cost of traditional CNC and EDM processing,a grinding process combined with digi-tal control has been developed to create a fully automated grinding device.This equipment can automatically and ac-curately simulate the rotation center of gas turbine blades of different specifications,achieving changes in rotation ra-dius,and can also simulate the swinging motion of the blade around the rotor center.Through digital control,the angle of blade swing and the grinding feed mechanism for different angles can be controlled to achieve grinding of blade tips with different angular shapes.Experimental verification has shown that the functionality of this device meets de-sign requirements and the processing precision sufficiently meets the tolerances for blade tip processing,allowing it to be used in mass production.
machining of gas turbineturbine rotating bladesgrinding processingequipment design
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维普
