Automatic oil injection device for screw threads of drilling rod on basis of tracking trolley

Disclosed is an automatic oil injection device for screw threads of a drilling rod on the basis of a tracking trolley. In the technical field of engineering drilling rigs, when the drilling rod is connected into a drilling string, one very important step is coating the interiors of the screw threads with oil. According to current common methods, the mode of manually coating the screw threads withoil by workers is mostly adopted, but the methods have the problems that the workers carry out operation very inconveniently, the labor intensity of the workers is high, the efficiency is low, and thework risk is large, or even the thread gluing phenomenon can be caused when the screw threads are not coated with the oil in place. According to the automatic oil injection device for the screw threads of the drilling rod on the basis of the tracking trolley, the tracking trolley is used for conveying the oil injection device to an oil injection operation point, in combination with a binocular vision technology, the posit