Mechanical balance adjusting device of oil pumping unit in mechanical oil extraction system

The utility model discloses a mechanical balance adjusting device of an oil pumping unit in a mechanical oil extraction system, which belongs to the technical field of oil pumping unit accessories andcomprises a casing, positioning plates are sleeved on the left side and the right side of the upper end of the casing in a sliding mode through strip-shaped through holes, and the lower ends of the two positioning plates penetrate through the strip-shaped through holes and are fixedly connected with supporting plates. The lower end of the supporting plate is connected with the inner wall of the lower end of the shell in a sliding mode, the upper end of the supporting plate is fixedly connected with a threaded sleeve, an adjusting mechanism is connected into the threaded sleeve, two rectangular rods are fixedly connected into the shell, and rectangular sliding sleeves are fixedly connected to the rod walls of the two rectangular rods. According to the utility model, the balance adjustmentcan be realized by changin