Novel pumping unit brake device

The utility model belongs to the field of oilfield oil extraction equipment. The utility model relates to a brake device, in particular to a novel pumping unit brake device. The device comprises a brake wheel, a brake mechanism, a transmission mechanism and a locking mechanism, the brake wheel is fixedly arranged on a brake shaft on the reduction gearbox; the method is characterized in that the method is characterized by comprising the following steps; the brake wheel is in a hub shape. The brake mechanism comprises an outer brake mechanism and an inner brake mechanism; the outer brake mechanism is arranged outside the brake wheel, the outer brake mechanism is fixedly installed on the reduction gearbox, the inner brake mechanism is arranged on the inner side of the brake wheel, a C-shapedsteel plate used for installing the inner brake mechanism is arranged across the brake wheel, the C-shaped steel plate is not in contact with the brake wheel, and the two ends of the C-shaped steel plate are fixedly connected