汽车液压与气压传动 齐晓杰 课后答案.khda.pdf

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1、11.1(l)()(2)(3)15(4)1.2()(1)1/6(2)(3)(4)(20001)(5)(6)(7)(8)(1)(2)(3)(4)1.3GBT786.193()1.21.4(1)LHL()0HL32HL46HL68LHLLHL(2)LHM(M)15HM32HM46HM68HMI00HM150JXH–FPTCI-WUST1/92007-03-151.5(1)(LHFC)35%55%()(50)1865(20MPa)(LHFDR)(54135)(58)()(2)(LHFBLHFAE)(3)(LHFAS)955()1.6(HM46)HM240C46(cStmm/s)22.12.2

2、2.3()2.4m=4mmz=9B=18mmn=2000r/minQ=30L/min223V=2zmB=29418=16286mm/rev63Qt=Vn=162862000=32.57210mm/minv=Q/Qt=30/32.572=92.1%[v=Q/Qt=30/32.572~30/36.288=92.1~82.7%(2~7)]2.5YB63p6.3MPaB=24mm=2.25mmZ=12=13R=49mmmaxr=43mmv0.90m0.90n=960r/min(1)(2)JXH–FPTCI-WUST2/92007-03-15(1)222(Rr)q[2(Rr)bz]Bnvcos2

3、22(4943)q[2(4943)2.2512]249600.9cos136365.02410mm/min65.024L/min(2)63Npq6.31065.02410/60outmax36.827510(W)6.83kW2.6=20d=22mmD=68mmZ=70.900.97mvn=1450r/minp=28MPa(1)(2)(3)(1)2qdzDntant42227681450tan2046395.49410mm/min(2)qq95.4940.9792.6299(LL/min)tv(3)Nqp/itm3695.494102810/0.9/60349.51510(W)Nqp/(

4、)ivm3692.629102810/(0.970.960)349.51510(W)33.1()ABAB()()()()4()BA()3.2D=50mmd=35mmq=10L/min(1)(2)JXH–FPTCI-WUST3/92007-03-15F=1000N()vF3334q41010/60v10.173(m/s)(3.8)32v32d(3510)2Fp(AA)dp(3.9)3112m1m44F410003p1.0394(MPa)1232d(3510)1m4F410003p1.155(MPa)1232d(3510)0.9m3.3p=10MPaq=25L/minD=100mmd=80

5、mmdo=30mm4qv2vd342510/60132(8010)0.08289(m/s)0.083m/s2Fdp4326(8010)10100450265.5(N)50.3kN2Fdpm4326(8010)10100.944528.95(N)45.3kN3.4,()6m/min()F=25000N0.25MPa6.3MPa25L/min(1)(2)()JXH–FPTCI-WUST4/92007-03-15(1)34q42510/60v16/6032v2ddd0.07284(m)73mm4q4q222v=vDdd222v32v(Dd)dD2d103.24(mm)103mmF(pApA)

6、11122m222[Dp(Dd)p]12m432632{(10310)(6.310)[(10310)F40686.7NF25000N14326(7310)]0.2510}0.940686.7(N)F25000N222pF(Dd)p(D)12m443225000(7310)610.25103232(10310)(10303310)40.963.4727210(Pa)(2)/D0.08(3.19)45[]=35.5MPa6pmaxD6.3100.10339.110(m)62[]235.51044.56MPa13MPa7MPa2Lp0=6MPap1=13MPap2=7MPaV=2L(1)n=

7、1pVpVVpV/p00111001nnnn1/1.4n=1.4pVpV(p/p)VVV(p/p)V002202022020JXH–FPTCI-WUST5/92007-03-151/1.4VVV=(p/p)VpV/p210200011/1.41/1.4VV/((p/p)(p/p))=2/((6/7)(6/13)=4.606(L)00201(2)Vp2/p02(7/6)V5.056(L)01p/p1(7/13)21(3)1/n1/1.4Vp2/p