Vertical type pumping unit with single reducing wheel

The utility model relates to an oil exploitation device, in particular to a vertical type pumping unit with a single reducing wheel. The vertical type pumping unit with the single reducing wheel comprises a tower and a motor fixed to the tower, wherein the motor is in linkage with a pumping rod and a balancing weight through a transmission mechanism, the transmission mechanism is of a hoisting structure and comprises a hoisting wheel and the reducing wheel arranged on the tower, the reducing wheel comprises a big guide wheel in the middle and a guide wheel shaft on the two sides, a driving wheel is fixed to one axial side of the hoisting wheel and is connected with the motor through a synchronous belt, a traction rope used for traction is arranged between the big guide wheel and the hoisting wheel, traction ropes are arranged between the guide wheel shaft and the balancing weight and between the guide wheel shaft and the pumping rod, and the balancing weight and the pumping rod are located on the two radial s