安徽职业技术学院学报
安徽職業技術學院學報
안휘직업기술학원학보
JOURNAL OF ANHUI VOCATIONAL TECHNICAL COLLEGE
2012年
2期
23-25,33
,共4页
陈甦欣%郭裕聪%胡学敏%赵德友%邵善敏
陳甦訢%郭裕聰%鬍學敏%趙德友%邵善敏
진소흔%곽유총%호학민%조덕우%소선민
热变形%非相似性%非对称结构
熱變形%非相似性%非對稱結構
열변형%비상사성%비대칭결구
thermal deformation%non-similarity%asymmetrical structure
物体热胀冷缩是自然规律,在工程应用中具有重要的影响。文章针对机械工程中常用的机械轴承孔进行热变形规律实验,采用自行研制的热变形实验装置,在-10-80℃温度范围内对单孔不同径向进行精密测量,并对测量数据分析,结合孔周边结构尺寸,得出孔的热变形量不仅与材料热膨胀系数物理属性紧密相关,与其自身结构尺寸也有较大影响,零件热变形具有非相似性特点。
物體熱脹冷縮是自然規律,在工程應用中具有重要的影響。文章針對機械工程中常用的機械軸承孔進行熱變形規律實驗,採用自行研製的熱變形實驗裝置,在-10-80℃溫度範圍內對單孔不同徑嚮進行精密測量,併對測量數據分析,結閤孔週邊結構呎吋,得齣孔的熱變形量不僅與材料熱膨脹繫數物理屬性緊密相關,與其自身結構呎吋也有較大影響,零件熱變形具有非相似性特點。
물체열창랭축시자연규률,재공정응용중구유중요적영향。문장침대궤계공정중상용적궤계축승공진행열변형규률실험,채용자행연제적열변형실험장치,재-10-80℃온도범위내대단공불동경향진행정밀측량,병대측량수거분석,결합공주변결구척촌,득출공적열변형량불부여재료열팽창계수물리속성긴밀상관,여기자신결구척촌야유교대영향,령건열변형구유비상사성특점。
The phenomenon of thermal expansion and contraction of object is a natural rule that has a significant influence in engineering applications. In this paper, the thermal deformation experiments of the commonly used mechanical engineering machinery bearing hole has been carried on. Using self-developed experimental device, in the --10-80 ℃ temperature range, a single hole is measured accurately on the different radial directs, and measurement data are analyzed and combined with the structure and size of hole surrounding. The results show that the thermal deformation feature of hole is not only closely related to the physical attributes of material, but still affected by its own structure and size of parts. That means thermal deformation of parts has non-similar thermal deformation features, that is, when some shape parts have thermal deformation, the size and structure of Darts all change to new status that is not similar to old shape of parts.