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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