起重机轨道压板受力计算

武汉市特种设备监督检验所:,,,:;;Abstract:Forcesexertedoncranetracksareanalyzed,andexternalforcesexertedontrackhold-downplatesandthestressdistributionareworkedout.Thecalculationresultsareusedtojudgewhethertheplateissafeornot.Keywords:crane;tracknold-downplate;forceanalysis,,,,,1,,,3,,;,,11UG0Q,111P1man=MUn+2(Q+G0)nL2L(1)P2man=MUn+2(Q+G0)nL1L(2):U;Q;G0;n;P1;P2;L;L1;L2;M;(1)(2),UG0,,,,G0Q(3)G0=(25+Q)/5(3)12FR,FWFa,,FY,FY=FR+FW+Fa(4)(1),,,f,,UG0Q,FRFR=f(U+G0+Q)(5)(5),,f002~004FRFR=(002~004)(U+G0+Q)(6)(2)142007(11),,,,2,,,GB38111983,,16m/s,FWCWqW(N/m2)AW(m2),FW=CWqWAW(7)(7):CW11,II,;h/l,CW1CW=161CWCWII01200103180309160920h/l51251013101514152516qWv(m/s)H1(m),qW=v234H1(8)GB38111983,16m/s,:16m,(8)qW=1623416=17067(N/m2)AWAyAl,AW=Ay+Al,22Q/tAl/m2Q51t1m2,Al=Q5Q5t,1t05m2,Al=5+05(Q-5),FW=CWqWAW=1617067(Ay+Al)=273(Ay+Al)(9)(3),,Fa,(WQ)1Fa=(W+Q)1(10)GB38111983Fa=0008v1(11),v1,m/s,FaFa=0008v1(W+Q)(12)(4)FY,FRFWFa,FY=FR+FW+Fa=(002~004)(W+Q)+273(Ay+Al)+008v1(W+Q)(13)13,U,FR(6)FR=(002~004)(G0+Q)(14),FW(9),AyAx,FW=CWqWAW=273(Ax+Al)(15),Fa,(12)WG0,152007(11)v2,Fa=0008v2(G0+Q)(16),FxFRFWFa,Fx=FR+FW+Fa=(002~004)(G0+Q)+273(Ax+Al)+0008v2(G0+Q)(17)2,,21,,,,,2,FH,,,022N1;FH;FV;f1;e1;h;e2,W1(W1),,W/n(W,n),,,,FX=0f1=FH=W1(18)FZ=0N1=FV=W/n(19)f1N1(),2:f1N1,,(18)(19)1nW1W(20)f1N1,1nW1W(21),0M00,8FHW1FVW/n,,W1h-Wne1202W1hWe11n(22),M00,,e1=h,,e2=e1/2,e1=h(20)~(22),:WnW1(23):WnW1(24):W2W1n(25)(23)~(25),,,WnW1W2W1n22,,Fi,,31Fi,F2,31,1f2,1N0f03,,13,t1t2c1b1b2b3b4162007(11)32,,2F2(),,NF2,4,2(FF2),44(W/n+4F2cos)=W1(26)F2=14cosW1-Wn(27),,,f2=F2,5,2,,3,f2F2,O,FiFi=1(b2-b4/2)F2cosb1-b42-c12cos+F2sint1-t2-c12sin-F2sinb1-b42-c12cos+F2cost1-t2-c12sin(28)3,N0f0N0=Fi+F2sin-F2cos(29)f0=F2cos+F2sin(30)O,f0/N0,,;f0/N0,O,5,,3,3,,,1GB/381119832GB/6974119863GB/50257819984GB/606719855GB/10183886JT/5022867JT/39919998YB/T5055939JB/T7333199410GB/T14370200011,,:112:430019:2006-11-06172007(11)