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1、機(jī)械設(shè)計(jì)第二篇聯(lián)接Wednesday,August04,2021Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.聯(lián)接的分類和意義靜聯(lián)接動(dòng)聯(lián)接可拆聯(lián)接(螺紋聯(lián)接、鍵聯(lián)接）不可拆聯(lián)接（鉚接、焊接、膠接）聯(lián)接的選擇（根據(jù)使用要求與經(jīng)濟(jì)要求來(lái)選擇、根據(jù)聯(lián)接的加工條件和被聯(lián)接零件的材料、形狀和尺寸等）Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5Clien
2、tProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.聯(lián)接的設(shè)計(jì)要求1．強(qiáng)度條件（等強(qiáng)度條件）2．經(jīng)濟(jì)性3．剛度條件或緊密性條件Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.機(jī)械設(shè)計(jì)第五章螺紋聯(lián)接和螺旋傳動(dòng)Wednesday,August04,2021Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5Clie
3、ntProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.第五章螺紋聯(lián)接和螺旋傳動(dòng)§5-1螺 紋§5-2螺紋聯(lián)接的類型和標(biāo)準(zhǔn)聯(lián)接件§5-3螺紋聯(lián)接的預(yù)緊§5-4螺紋聯(lián)接的防松§5-5單個(gè)螺栓聯(lián)接的強(qiáng)度計(jì)算§5-6螺栓組聯(lián)接的設(shè)計(jì)§5-7提高螺紋聯(lián)接強(qiáng)度的措施Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.一．常用螺紋§5-1 螺 紋A·聯(lián)接螺紋1．普通螺紋(粗
4、牙細(xì)牙)2．管螺紋3·錐螺紋1．梯形螺紋3．矩形螺紋2．鋸齒形螺紋B·傳動(dòng)螺紋Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.二．螺紋參數(shù)大徑d：公稱直徑中徑d2：幾何與配合小徑d1：危險(xiǎn)截面線數(shù)n
5、：n≤4螺距P導(dǎo)程S：S=n*P旋向（左、右旋）牙型角α牙側(cè)角β升角ψEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.§5-2螺紋聯(lián)接的類型和標(biāo)準(zhǔn)聯(lián)接件一．基本類型（請(qǐng)掌握各聯(lián)接的特點(diǎn)及適用場(chǎng)合）1．螺栓聯(lián)接?普通螺栓聯(lián)接（受拉螺栓聯(lián)接）?鉸制孔用螺栓聯(lián)接(受剪螺栓聯(lián)接)2．雙頭螺柱聯(lián)接（常拆場(chǎng)合）3．螺釘聯(lián)接（不常拆場(chǎng)合）4．緊定螺釘聯(lián)接圖例見下頁(yè)★★普通螺栓既可用來(lái)承擔(dān)軸向載荷也可用來(lái)承擔(dān)橫向
6、載荷，但鉸制孔用螺栓一般用來(lái)承擔(dān)橫向載荷。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.有間隙無(wú)間隙?普通螺栓聯(lián)接（受拉螺栓聯(lián)接）?鉸制孔用螺栓聯(lián)接(受剪螺栓聯(lián)接)Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.?雙頭螺柱聯(lián)接?螺釘聯(lián)接Eval
7、uationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright
8、2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slides
