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The secondary balanced torque was a net output net gearbox torque by the primary and secondary counterbalance, and so on.
Finally, the net gearbox torque at the time investigated is the sum of the four torque items just calculated: T_{text{net}} = 1 6 5 1 1 1 - 10 20 - 1 30.
Similar(58)
The primary balanced torque was a net output gearbox torque by the crank counterbalance.
For the beam pumping units, reduction of the polished rod load or the gearbox net torque is an effective method to improve its system performance, because the amplitude value and the fluctuation of the gearbox net torque reflect the running condition of this oil wells system.
Figure 10 shows that the curve-1 was the torque of rod, the curve-2 was the balance torque, the curve-3 was net torque of gearbox and the red region-4 was negative torque.
"How good is the new gearbox?
Finally, and perhaps most importantly, there's a new gearbox.
Most notably, there's a new gearbox and drive shaft.
Net torque on the gearbox at the crank angle θ (in. lbs).
Even the balance effect reached the industry standard, the net output torque of gearbox also had the peak torque and negative valley torque.
In cases when the pumping system operates with varying crankshaft speeds, the net torque on the gearbox must include the inertial effects as well, and the formulas derived for a constant crankshaft speed (Eqs. 1 3) cannot be used.
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