The Study And Design Of New Saving Pumping Unit

The paper has a profound on the theory of New energy-saving type pumping unit, and an analysis is done on principal of mechanical petroleum production through the abuse of conventional pumping unit, a new drive scheme is presented, through profound studying, the energy-saving key is found, that is the configuration curve of small hoisting sheave , the exact calculation formula and variation curve are given for suspension center motion (displacement, velocity, acceleration) and the variation law of speed reducer shaft there are two factors that affect the power of motor : one is the pure peak torque of crank , the other one is torque fluctuation . while the pure torque is combined by suspension center torque and balancing weight torque, so the change If pure torque can be achieved by changing the motion low of suspension center and offset angle . In which the motion law of suspension center is decided by designing a special curve for varied diameter wheel. The paper designs the scheme, the designing parameters are optimized. A set of optimal parameters are achieved in theory. Besides the scheme design , the main elements are also designed in strength.Through the calculation on theory and the contrast of new type pumping unit with the conventional one, it can be found that the new type pumping unit has sharp energy-saving effect.This kind of pumping unit will promote energy-saving and production costs cut.