已知条件：原煤ρ20°，γ085th，Xmax03m，输送量Q300th长度L460m倾角β4°
一、初步选用带速v2m二、带宽初步选带宽B800mmCst097K363B√QKγvCst√3003630852088074mB≥2Xmax0208m因此选用B800mm三、预选用PVG800S皮带S
86105Nq0112kgm四、托辊选用φ108qtGtzltzGtkltk106128783118kg五、计算传动滚筒圆周力qQ36v300362417kgFCNfLgqt2q0qcosβgqH125003460981182112417cos498417460si
425955N轴功率PFv10002595521000519kw六、电机功率PdkdPεδδd11551908809095793kw选择双电机驱动单机功率40kw七、最小张力确定
fF1F2F2259552129775N最小张力应满足SLmi
≥CFmaxFmaxKaF14129775181685NSLmi
≥CFmax054118168598292N按不打滑条件应满足SLmi
≥98292N1对承载分支Szmi
≥50qq0gLtzcosβ8504171129812cos4838802N2对回空分支Skmi
≥50q0gLtkcosβ850112983cos4820539N按垂度应满足Szmi
≥38802N八、输送带张力
8736令S198292NS2S198292NS3104S210498292102223NS4S3102223NS5104S4104102223106312N245101119
fFH5fLgGtkltkq0cosβ003460983112cos419174NFst5gq0H598112460si
435343NS6S5FH5Fst5106312191743534390143NS7104S61049014393749N＞38802N满足承载垂度最小张力要求S10S1F9829225955357842NSmax九、输送带强度计算mm0kaCwε035141507105MS
Smax8001080357842242＞105因此PVG1000S满足要求选用SSJ800275型皮带输送机
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