Multi-belt type conveyor Plant Operation efficacy group discussion with
(A) the minimum tension method. Friction coefficient μ is assumed that the value of a case where the drive pulley, the wrap angle α fully utilized, to deliver the same time a
large force required for the circumferential band minimum tension, this method is the application of the more common conveyor more, while steel cord conveyor belt machine
Almost no practical value because the minimum tension method the transmission ratio of the required drive power eμα, the two sets of drive power difference is too large,
sometimes up to 3 times, then they use the motor model, the gear center distance certainly different from the same models of different center distance
Even if the nominal transmission ratio gearbox, the actual transmission ratio is different, plus the different models of motor rated speed is not equal, for various reasons the automatic checkweigher
actual speed of the drum makes two bigger difference to the "proportion of the motor according to the nameplate power output" caused serious difficulties.
(2) other circumferential force method. That is, each driving roller is equal circumferential force transmitted. Sag from the minimum required to ensure the tension point
counting, according to the calculations obtained by point of each special point tension, checking each motor drive rollers meet without slippage. This approach allows two sets
of power drive means
Rate ratio deviation eμα / 1 is large, does not make full use of the friction rollers, so that larger tension band.
(3) and other drive unit method. Respectively, in the double-drum drive belt, the two friction drive roller traction impossible equal, that P1 is greater than P2, generally
P1/P2 greater than 2. Thus, if the design is the same traction, bound or drive rollers 1 of the traction
Power is not fully utilized, or the drive roller 2 is dangerous sliding state, so the design specifications of the three with the same motor drive, the drive roller 1 by a drive Conveyor System
motor 2, a motor driven by the drive roller 2, so that full use of the friction generated by the drum, and
Can drive unit universal.