基于數(shù)值模擬分析汽車發(fā)動機齒輪應(yīng)力及模具磨損

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中圖分類號：U464.13 文獻標識碼：A 文章編號：1003-8639（2025）06-0158-03

BasedonNumerical Simulationof the Stress of Automotive Engine GearsandtheAnalysisof MoldWear WangHonglei，Li Xiaozhan

（Shangqiu Instituteof Technology，School of Mechanical Engineering，Shangqiu 476ooo，China）

【Abstract】Through numerical simulation methods，thisarticle systematically analyzes the stress distribution and mold wear characteristics of automotive engine gears during the forging process.Based on the finite element analysis technology，theequivalent stress（up to566MPa）and strain concentrationareas（such as thetooth root）during the closeddie forging processof gears were simulated toreveal thecorelation between stressconcentrationand forging defects.Combining the mold designprinciples（precision，durability，and maintainability），optimize thematerial selection（high-speed stee，hard ally），structuraldesign（uniform force distribution），and manufacturing processes （electrical dischargemachining，wirecutting）.Theresearch significantly improves theservice lifeof themoldby reducingthe forging speedandadjusting the mold parameters tocontrol the mold wear within O.Ooo30lmm.This achievement provides theoreticalbasisand technical supportfor theeficient manufacturingof enginegearsand the servicelife extension of molds.

【Key words】 engine gear；stress simulation analysis；strain simulation analysis；mold wea

1發(fā)動機齒輪模具的設(shè)計原則

1.1 精確性

齒輪作為發(fā)動機的核心部件之一，其設(shè)計和制造的品質(zhì)直接關(guān)系到發(fā)動機的性能和壽命，齒輪在發(fā)動機中扮演著傳遞力量、密封氣缸和散熱等多重角色，因此，它的形狀、尺寸和材料的選擇都必須經(jīng)過嚴格的計算和測試，而這一切的基礎(chǔ)，就是齒輪模具的設(shè)計，所以保證模具的精確性至關(guān)重要[1-2]

1.2 耐用性

作為現(xiàn)代工業(yè)生產(chǎn)必不可少的核心部件，齒輪模具在高溫、高壓的工作環(huán)境下承擔著十分重要的作用，要求齒輪模具能夠在這種條件良好的環(huán)境下穩(wěn)定且高效率地運行，就必須擁有良好的耐磨、耐腐蝕和不形變的能力。（剩余2846字）