Pumping unit rod column adjusting device and method

The invention discloses a device and a method for adjusting a rod column of a pumping unit. The device comprises a force application mechanism, a fixing mechanism and a transmission mechanism, the upper end of the transmission mechanism is connected with the beam hanger, and the transmission mechanism is in transmission connection with the force application mechanism; the polish rod is fixed by the fixing mechanism; and the force application mechanism drives the fixing mechanism to ascend. The device is convenient to mount, the existing beam hanger and the polish rod are used as bearing points, the flexible pull rope is convenient to connect, and the device can meet the height requirements of different beam hangers; the worm drives the worm gear nut to rotate, and time and labor are saved; according to the invention, the operation procedure is simplified, and the injury probability of conventional operators is avoided; the device is simple in structure, the pumping unit rod column can be rapidly and stably ad