机械制造与自动化
機械製造與自動化
궤계제조여자동화
JIANGSU MACHINE BUILDING & AUTOMATION
2015年
1期
118-123
,共6页
推土机%履带板%有限单元法%优化设计%应力
推土機%履帶闆%有限單元法%優化設計%應力
추토궤%리대판%유한단원법%우화설계%응력
bul dozer%grouser%finite element method%optimized design%stress
介绍了岩石履带板与传统履带板结构特点，分析了目前岩石型推土机履带板易磨损寿命短的原因。针对分析结果，对结构进行优化设计，得到新结构岩石型履带板，并建立了三维模型。基于正常行驶和在冲击载荷作用下两种工况，对两种履带板的受力进行了计算，并应用有限单元法对两种履带板在两种工况下的强度进行了分析，得到了最大应力和最大位移及发生位置。强度分析结果表明，新结构履带板最大应力和最大位移均有所降低，新履带板能适应岩石型推土机的作业需求，为同类型履带板的开发、改型提供了借鉴依据。
介紹瞭巖石履帶闆與傳統履帶闆結構特點，分析瞭目前巖石型推土機履帶闆易磨損壽命短的原因。針對分析結果，對結構進行優化設計，得到新結構巖石型履帶闆，併建立瞭三維模型。基于正常行駛和在遲擊載荷作用下兩種工況，對兩種履帶闆的受力進行瞭計算，併應用有限單元法對兩種履帶闆在兩種工況下的彊度進行瞭分析，得到瞭最大應力和最大位移及髮生位置。彊度分析結果錶明，新結構履帶闆最大應力和最大位移均有所降低，新履帶闆能適應巖石型推土機的作業需求，為同類型履帶闆的開髮、改型提供瞭藉鑒依據。
개소료암석리대판여전통리대판결구특점，분석료목전암석형추토궤리대판역마손수명단적원인。침대분석결과，대결구진행우화설계，득도신결구암석형리대판，병건립료삼유모형。기우정상행사화재충격재하작용하량충공황，대량충리대판적수력진행료계산，병응용유한단원법대량충리대판재량충공황하적강도진행료분석，득도료최대응력화최대위이급발생위치。강도분석결과표명，신결구리대판최대응력화최대위이균유소강저，신리대판능괄응암석형추토궤적작업수구，위동류형리대판적개발、개형제공료차감의거。
This paper introduces the characteristics of the rock￣type and normal grousers respectively and analyzes the causes of current rock￣type grouser’ s short life. The design of the structure is optimized based on the analysis,the new structure of the grous￣er is gotlen and the 3D model is established. Based on conditions of normal driving and impact loads,the force of two kinds of grous￣ers is calculated. Their intensity is analyzed by use of the finite element method to obtain the maximum stress and the maximum dis￣placement and location of them. Strength analysis results show that the maximum stress and maximum displacement of the new grouser are improved,the new grouser is adapted to the working condition of the rock￣type bul dozer. A reference basis is provided for the development and redesign of the same type grouser.
