Tower-shape ball screw pumping unit

• Main Authors: DAILIU WANG, GUIMING ZHAO, SHAOJIE BAI, HONG LU, WEIBING LU, WENJUN HU, JIANHONG XIAO, PIN YU
• Format: Patent
• Language: English
• Published: 17.05.2006
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to a tower-shaped rolling ball driving screw pumping unit which comprises a feed rod joint, a rolling ball driving screw, a lower support, a protective pipe, a work frame, a driven wheel, a triangular belt, a driving wheel, an electromotor, an upper support, a steel cable, a tower frame, a guard rail, a crown sheave, a counterweight, a steel cable joint and a ladder, wherein the whole structure of the utility model is a tower-shaped structure, the tower frame is in a rectangular frame structure, the top of the utility model is provided with the double-groove crown sheave, and the guard rail is arranged at the periphery of the crown sheave. The ladder is arranged from the bottom of the lateral surface of the tower frame to the guard rail, the electromotor is installed in the center of the tower frame vertically and the driving wheel is arranged on the electromotor. The rolling ball driving screw can be penetrated through the center of the driven wheel, the driven wheel is connected with the tower frame through the work frame to form a whole and a bearing is installed between the driven wheel and the work frame. The driving wheel is connected with the driven wheel through the triangular belt, the feed rod joint and a stop rod are arranged at the lower end of the rolling ball driving screw and the upper end of the rolling ball driving screw is provided with a cable hanging unit. The rolling ball driving screw is connected with the lower end of the cable hanging unit, the steel cable is connected with the upper end of the cable hanging unit and the steel cable is connected with the counterweight through the crown sheave. The utility model has the advantages of high transmission efficiency, energy saving and high system efficiency of a pumping unit well.