J BT2001.73-1999水系統(tǒng)45-&amp#176;鋸齒形螺紋牙型與基本尺寸.pdf

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1、ICS23.100JB中華人民共和國(guó)機(jī)械行業(yè)標(biāo)準(zhǔn)JB/T2001.12001.74一1999水系統(tǒng)零部件Watersystemassemblyandparts1999-06-28發(fā)布2000-01-01實(shí)施國(guó)家機(jī)械工業(yè)局發(fā)布中華人民共和國(guó)機(jī)械行業(yè)標(biāo)準(zhǔn).1B/T2001.73一1999水系統(tǒng)450鋸齒形螺紋牙型與基本尺寸代替1B2076-84Watersystem-45degreesaw-tooththread-Toothpatternandbasicsize范圍本標(biāo)準(zhǔn)規(guī)定了450鋸齒形螺紋牙型與基本尺寸。本標(biāo)準(zhǔn)適用于壓力機(jī)立柱用450鋸齒形螺紋。型式與尺寸牙型

2、按圖1及表1的規(guī)定。2.2基本尺寸按表的規(guī)定H=re=0.25tZ=0.02t+0.16h,=0.575ti-0.175t二i/}2h-0.5ti,=e=0.25t圖1表1外螺紋內(nèi)螺紋間隙螺紋高度齒頂寬度圓角半徑螺紋高度齒頂寬度圓角半徑Zrh,e尸嘩heJY}+lfi1mm63.451.500.740.50.283刀卜780.40.584.602.00.990.50.324.02.320.40.5105.752.501.241.00.365力2.860.81.0百26.903刀1.491.00.406.03.400容1.0169.204.01.981.00.4

3、88刀4.480名1.02011.505.02.481.50.5610.05561.21.52413.806.02.971.50.6412刀6.641.21.53218.408.03.961.50.8016.08.801.21.84023.0010.04.95l.50.9620.010.96】22.0國(guó)家機(jī)械工業(yè)局1999-06-28批準(zhǔn)2000-01-01實(shí)施207JB/T2001.73-1999表2內(nèi)外螺紋外螺紋內(nèi)螺紋內(nèi)徑內(nèi)徑內(nèi)徑外螺紋截面積F外徑氣距dd,d,d,'cm'mm150147143.1144160.8160157153.1154184.161

4、70167163.1164208.9180177173.1174236.3190187183.1184263.3200196190名192285.9210206200名202316.58220216210.8212348250246240.8242455.4280275268.5270566.210300295288.5290653.7320315308.5310747.1350344336.2338887312380374366.23681052.7400392381.63841143.7420412401.64041266】16450442431.6434

5、1463.0480472461.64641672.6500492481.64841821.6520510497.05001939.0550540527.05302180.220580570557.05602436.7600590577.05802614.8620610597.06002797名650638622.46263040.9680668652.46563341.2700688672.46763549.224720708692.46963763.3750738722.47264098.7780768752.47564443.9208JB/T2001.73

6、-1999表2(完)內(nèi)外螺紋外螺紋內(nèi)螺紋內(nèi)徑內(nèi)徑外螺紋截而積廠外徑內(nèi)徑螺tWEdd2d,dl'cm2mm800784763.27684572.6820804783.27884815.2850834813.28185193.8880864843.28485580.63290088486328685852.192090488328886123.0950934923.29186549.7980964943.29486981.81000984963之9687286.6106010401014刀10208075.4112011001074.010809059440118

7、011601134.0114010099.9125012301204.012101138533標(biāo)記與示例3.1液壓機(jī)用450鋸齒形螺紋用字母‘`YS直徑x螺距/線數(shù)螺旋方向”表示，單線螺紋不必注明線數(shù)，右旋螺紋不必注明螺旋方向。3·2標(biāo)記示例例1:螺紋外徑250mm,螺距8mm左旋單線鋸齒形螺紋:YS250x8左JB/T2001.73-1999例2:螺紋外徑300mm,螺距10mm右旋單線鋸齒形螺紋:YS300x10JB/T2001.73-1999例3:螺紋外徑520mm,螺距20mm右旋單線鋸齒形螺紋:YS520x20JB/T2001.73-1999209