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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)JB/T2001.74一1999水系統(tǒng)螺母型式與尺寸代替1B2077-84Watersystem-Nut-Typeandsize范圍本標(biāo)準(zhǔn)規(guī)定了液壓機(jī)用螺母的型式與尺寸。本標(biāo)準(zhǔn)適用于與壓力機(jī)立柱配套的螺母。2引用標(biāo)準(zhǔn)下列標(biāo)準(zhǔn)所包含的條文，通過在本標(biāo)準(zhǔn)中引用而構(gòu)成為本標(biāo)準(zhǔn)的條文。本標(biāo)準(zhǔn)出版時(shí)，所示版
2、本均為有效。所有標(biāo)準(zhǔn)都會(huì)被修訂，使用本標(biāo)準(zhǔn)的各方應(yīng)探討使用下列標(biāo)準(zhǔn)最新版本的可能性。JB/T2001.73-1999水系統(tǒng)450鋸齒形螺紋牙型與基本尺寸3型式與尺寸3.1液壓機(jī)用螺母的型式與尺寸按圖1、表t的規(guī)定。液壓機(jī)用螺母由兩個(gè)半螺母用螺栓連接而成，半螺母的型式與尺寸按圖2、表2的規(guī)定。3.3液壓機(jī)用螺母的螺紋按JB/T2001.73的規(guī)定。B型A型(dg450mm)(d<420mm氣刁尸r尸，，州1口刊日、人當(dāng)[_匕/盛巨啥耳-I1J}-"}可;、甲/勻「一窩、甲三巴·產(chǎn)洲食州}2一、山「巴/tl、叼1?D1一半螺母;2-螺栓;3一螺
3、母圖l國(guó)家機(jī)械工業(yè)局1999-06-28批準(zhǔn)2000-01-01實(shí)施210JB/T2001.74-1999211JB/'f2001.74一1999表l(完)螺紋外徑螺桂臀DHH,Bd(草)d,dd,義乙I』mm9201380830265320M72x4003941M649501430860280437032809801470880290M72x450479410001500900300M7251666106015909603003606432112016801010325M80762440M90x45090118017701060350910
4、4M10012501880113038010564A型(d}-420mm)e型(d}-450mmn/2xd深I(lǐng)表2d〔CnI12)d,d2DD,D2HHB,N2B2IRR,Bd,t〔I)Ikmog:mm15023014714060959512.61602401571507010010014.21706262526016716070105605253310518.41802701771708011011020.641MIO190290187180120日525.420030019618012511527.02108323032020619013
5、0706304012533.22203302162009014012536.5212JB/T2001.74-1999表2(完)d臀、(ni/2)d,d,DD,D,HH,B,從B,lRR,B,d,Ikgm(I)mm250838024623010015515056.2327040280420一}一275250110175165M10776300104502952701201951758242404532038480315290}1302008050190日4M12350530一}一344320140}22021015412838044570374
6、3401502359055220191M1640044600}一392}一360160一}245905523022342842050630412}38017026060240255M2045016680570442}410115285260327501006048072062047243012530510280298500640492450135320290329750100M24520606605104701303307030037078055058網(wǎng)690540500145345120127032043058020870}72057052
7、0155365330488印0夕00760590540150380350M3O5521106209307806105601160一!390130360635650980810638590175一}410370695680840668610185}430390M3676466701020148080700860688630}185}445400827·24105012072010808807086501954601404108927501130920一738680210}485430M42101678063117096076:一}700220}
8、50545011178001200990784一}720}2105104601292M4882012301010804}740}220525470134685012
