收获机械贯流风机结构参数优化研究

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中图分类号：S226.5 文献标识码：A 文章编号：2095-5553（2025）07-0007-05

Abstract：Toaddressthechallengeoflowwindspeedatthetailendandinsufficientairflowonbothsidesofthefrontend of thecross-flow faninthe windfiledofharvest machinery，thisstudy focusedonthemultifunctionalcombined grain harvester.Key influencing factorswereidentified，including thevolute shape，sidesealing plate，front-end inlet clearance，back-endinlet clearance andupper-endoutlet clearance.Using Fluent fluid simulationanalysisand prototype optimization，each factor was systematicall tested andanalyzed to determine its efect on fan performance. Thegoal was tooptimize the parameters with the most significant impact andtherebyenhance theoverallperformance of thefan.The results showed that the volute shape，side sealing plate，and upper outlet clearance had the most substantial influenceonthewindfielddistribution.Specifically，ading twosidesealing platesincreasedthewindspeedat the front end from 9-10m/s to 12-13m/s . Optimizing the volute shape and adjusting the rear-end upper clearance improved the average wind speed at the tail end from 6-6.5m/s to 6.5-7.5m/s ：

Keywords：harvesting machinery；cleaning device；cross-flow fan；structural parameter optimization；spiral shel

0 引言

贯流风机是利用风机内部偏心蜗特性工作的新型风机，体积小且流场分布均匀。（剩余4880字）