煤矿带式输送机双驱动理论与设计研究

Research on Dual Drive Theory and Design of Belt Conveyor

针对水平运载的煤矿带式输送机头部双滚筒与头尾单滚筒两种双驱设计方式进行了理论计算与分析,结果表明:在运行条件相同的情况下,采用最大限度利用驱动滚筒围包角设计计算时,头尾单滚筒驱动方式计算得到的输送带最大张力值相对要小;采用等功率配比设计计算时,两种驱动方式在等功率配比2∶1情况下围包角利用率均达到最大,且滚筒摩擦系数μ≥0.15时,头尾单滚筒驱动方式计算得到的输送带最大张力值相对要小,通过工程案例计算,进一步验证了理论推导的正确性。

For dual-drive design method of horizontal transportation belt conveyor with double roller and single roller at head and tail , theoretical calculation and analysis were conducted .The results showed that under the same operational conditions , when the wrap angle utilization is taken as maximum for design calculation , the maximum belt tension value of the driving method with single roller at head and tail is relatively small .Wrap an-gle utilization rate of the two driving modes reached their maximum value when the power mix ratio is 2∶1, and when the roller friction coefficient is μ≥0 .15 , the maximum belt tension of the driving with single roller at head and tail is relatively small .The engineering example calculation further validates the theoretical analysis .